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How to Tell When Someone is Lying

Find out how to spot the tell-tale signs that a person isn’t telling you the truth.

When a person lies, they unconsciously do certain things which they would not do if they were being sincere. Here is a comprehensive list of the signs to look out for that the person you are talking to is lying.

Body Language & Facial Expressions

  • If a person is telling the truth, when they smile it will involve the whole face, including the eyes. If a person is lying, when they smile it will only involve the mouth. Look at the eyes; they are always a give-away.
  • A liar’s physical expression will appear stiff and limited, with a lack hand and arm actions. Any limb movements will tend to be near their own body, so that they take up less space.
  • Touching the throat, ear, nose, mouth, and also the face in general, are all signs of lying
  • A liar will tend to avoid eye contact

Contradiction & Emotional Gestures

  • Delay between verbal expressions and facial expressions. For example, if person receives a gift they didn’t really want, they will say “I love it!” but there will be a pause before they smile.
  • Verbal statements and gesture/expressions don’t match. For example, if someone says “I love you” whilst frowning.

Reactions & Interactions

  • If challenged, a guilty person will become defensive, whereas an innocent person will usually become offensive.
  • Someone who is lying will find it difficult to face their accuser, so may turn away
  • They may unconsciously place objects between themselves and you (e.g. tea cup, book, etc.).
  • Using the same words as you to answer your question, for example, if asked, “Did you steal my pen?” they will respond with, “No, I did not steal your pen.”.
  • Statements which contain contractions are more likely to be truthful, for example, “I didn’t do it” as opposed to “I did not do it”
  • A liar may imply things rather than make direct statements
  • They may over-explain themselves, giving too many reasons and adding too many unnecessary details to try to convince you
  • They may leave out pronouns and speak in a more monotonous tone of voice
  • Sentences may be confused, garbled and spoken quietly, with poor grammar and syntax

Other Signs of Lying:

  • If you suspect someone is being untruthful, then alter topic of a discussion swiftly. A liar will follow along gladly and become more relaxed. A guilty person will want the subject to be changed, whereas an innocent person may become confused by the change of topic.
  • Avoidance of the subject by means of humour or sarcasm
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User Comments
  1. pitpawten

    On August 19, 2008 at 4:10 pm


    One you missed under the How to Tell When Someone is Lying/b>:

    They say they truly enjoy soccer :)

  2. pawpiteleven

    On August 19, 2008 at 4:49 pm


    u r an idiot, pitpawten

  3. Michael

    On August 19, 2008 at 5:25 pm


    What a load of crap. Most of the “signs” are simply related to nervousness and could have multiple causes. Accomplished liars are well able to mask these simple “signs”. Proper scientific tests have shown these sorts of indicators have negligible effect on the ability to detect lies.

  4. Laughing Bwoi

    On August 19, 2008 at 5:48 pm


    You will find on most people these observations are about 70% successful… which is more than impressive. This is only my opinion, I’ve studied the psychology of lies and am a full time poker player, whatever that may count for.

    Nice post. This list is also good to help you become a good liar. A good tip is someone who outs their hand on their heart is suppposed to be telling the truth, mixed with some eye contact (not too much) this can make most lies effective… providing your story sounds natural.

    Lying rules!!

  5. Laughing Girl

    On August 19, 2008 at 5:50 pm


    I think he means “puts their hand on their heart” not “outs their hand…”.

  6. laughing lier

    On August 19, 2008 at 6:44 pm


    lies…all lies!!!
    lol

  7. Javi

    On August 19, 2008 at 6:45 pm


    subconscious.. not unconscious..
    and I agree with Michael

  8. LaughingOutLoud

    On August 19, 2008 at 6:53 pm


    You know how to tell president Bush is lying, his mouth is moving. Lies, lies, lies, lies.

    lol

  9. GRO

    On August 19, 2008 at 7:25 pm


    A guy is hitting on you and says he isn’t interested in sex. Now, that’s a lie whatever sex you are!

  10. Unofre Pili

    On August 19, 2008 at 7:26 pm


    Thank you for the information.

  11. KDG

    On August 19, 2008 at 7:51 pm


    Believing in these oversimplified ‘tells’ will just make you appear presumptuous and unprofessional – why not just respect people and hear them out – and THEN check their stories. Everybody’s innocent until they’re proven guilty, after all. And only hard evidence counts, not even lie detectors.

  12. Harv

    On August 19, 2008 at 7:58 pm


    With *most* people body language, and how they act are a direct “tell”.

    Nice post!

  13. writinghands

    On August 19, 2008 at 9:30 pm


    I am always torn between being angry about ignorance and being amused ’cause it’s actually very humorous. Anyhow, I have Tourette syndrome… I blink a LOT, turn my head in odd ways, have trouble focusing visually on any one thing unless it’s a “down time”, and I move my shoulders and arms and fingers, etc. in random/odd ways all the time… As you can imagine, some people think back on reading things like this that say liars are jittery, constantly moving, do not keep eye contact, etc… Yeah, so I’m such a liar. I don’t look you in the eye very much, I move ALL the time, I get hyper. I find it difficult to “confront the accuser”, so to speak, because I have panic attacks, don’t like crowds, strangers, etc….
    Because of my ticks, my facial expression doesn’t usually match up with my verbally expressed feelings. I over-explain myself about everything. This isn’t because I’m lying; rather, it is because I have OCD and feel that EVERY LITTLE TINY INSIGNIFICANT detail is of the highest importance to the whole story…. It is not my fault that you don’t get the importance that my keyboard has 127 buttons on it, that there were exactly 720 WHOLE tiles in the office at my last job, with approx. 47 partial tiles… I find it relavent, somehow, that there
    Um. I just realized that I was going on too much. This doesn’t happen that often. Um. We are each responsible for comparing our personal truths with the facts of reality.

  14. writinghands

    On August 19, 2008 at 9:34 pm


    I forgot to mention that there were 736 fence-posts (metal ones with four lines of barbed-wire, between the office and the road where I drove each day. There were nine wooden posts-the larger ones with a twelve inch diameter, not the three-inch diameter ones.

  15. Laura Ann

    On August 19, 2008 at 10:34 pm


    If they are accomplished liars, there are signs but they are often hard to read. People who are not used to lying may be easy to read, body language, lack of eye contact, etc. I think it’s more about instinct, what my instincts or gut feelings are telling me. However, most people who lie, eventually get caught, usually by making a mistake on the original lie they told. Just a personal hunch!

  16. Adam

    On August 19, 2008 at 11:27 pm


    … and there are a billion girls out there, including Laura Ann, that are stupid enough to want to get lied-to. for realzies.

  17. mark

    On August 19, 2008 at 11:45 pm


    this is bull i lie all the time and hardly ever get caught:)

  18. RJ Chamberlain

    On August 20, 2008 at 12:25 am


    An interesting piece Marcus. Thanks

  19. Richard

    On August 20, 2008 at 2:41 am


    Eyes and Body Language are what I follow

  20. Mary Contary

    On August 20, 2008 at 12:48 pm


    Holy cow! Did I miss the memo on “Vent” to Marcos day????

  21. Verniel Cutar

    On August 20, 2008 at 12:52 pm


    Great poem about lying!

  22. Seem familiar?

    On August 20, 2008 at 1:08 pm


  23. Josey

    On August 20, 2008 at 1:25 pm


    Also, liars can’t remember what they said. They can’t keep up with their made up stories! Nice job.

  24. Harrison Ferrel

    On August 20, 2008 at 2:05 pm


    It is amazing how many of these things I’ve seen George W. Bush do! Having a bit of psychology under my belt, I have often wondered whether he is a sociopath because he fits so many of the traits. A great book recommendation is The Sociopath Next Door by Harvard psychologist Martha Stout, PhD

  25. Sphinx

    On August 20, 2008 at 5:12 pm


    These signs can often be valid indicators but they are not totally reliable and could lead to mislabeling. A shy person may avoid eye contact even if he is not a liar because he is saddened & humiliated at being wrongly accused. There are many liars who become emotionally or physically violent when challenged, hoping to intimidate their accuser and make them stop asking questions. Yet a person who is telling the truth might also become angry.

    Some liars retain their cool when accused–especially if they are in a position where they cannot be punished for lying. Yet an innocent person might do the same if they are trying to be rational instead of emotional. An innocent person may use sarcasm to demonstrate that the accusation is ridiculous or hypocritical. There are so many exceptions to these rules–the real signs of lying are often more subtle and vary by personality type.

    Many pathological liars and other psychopaths do not feel guilty or nervous about lying and thus show no sign of discomfort. They lie with great confidence because they are also lying to themselves. These people can only see what they want to see… they are extremely self-deluded and truly want to believe the lies they tell. When they believe their own lies, so do others. They think they can never be wrong just so long as they refuse to admit it. It’s hard for a normal person to comprehend that kind of self-deception, but ironically some of the very worst sociopaths are the most convincing liars.

    Half of these indicators are probably valid for any given person… the problem is that the valid indicators vary from person to person. Everyone has lied a few times but the best way to recognize a compulsive liar is by observing a long term pattern of deceptive behavior. This is the one thing a compulsive liar cannot control.

  26. Sphinx

    On August 20, 2008 at 5:12 pm


    These signs can often be valid indicators but they are not totally reliable and could lead to mislabeling. A shy person may avoid eye contact even if he is not a liar because he is saddened & humiliated at being wrongly accused. There are many liars who become emotionally or physically violent when challenged, hoping to intimidate their accuser and make them stop asking questions. Yet a person who is telling the truth might also become angry.

    Some liars retain their cool when accused–especially if they are in a position where they cannot be punished for lying. Yet an innocent person might do the same if they are trying to be rational instead of emotional. An innocent person may use sarcasm to demonstrate that the accusation is ridiculous or hypocritical. There are so many exceptions to these rules–the real signs of lying are often more subtle and vary by personality type.

    Many pathological liars and other psychopaths do not feel guilty or nervous about lying and thus show no sign of discomfort. They lie with great confidence because they are also lying to themselves. These people can only see what they want to see… they are extremely self-deluded and truly want to believe the lies they tell. When they believe their own lies, so do others. They think they can never be wrong just so long as they refuse to admit it. It’s hard for a normal person to comprehend that kind of self-deception, but ironically some of the very worst sociopaths are the most convincing liars.

    Half of these indicators are probably valid for any given person… the problem is that the valid indicators vary from person to person. Everyone has lied a few times but the best way to recognize a compulsive liar is by observing a long term pattern of deceptive behavior. This is the one thing a compulsive liar cannot control.

  27. teresa palmer

    On August 20, 2008 at 5:56 pm


    I find it intriguing ..whether or not I completely agree or not with the information.

  28. nobert soloria bermosa

    On August 21, 2008 at 5:16 pm


    cool stuff Marcus,I enjoyed it,thanks

  29. Regina

    On August 21, 2008 at 7:41 pm


    Interesting… I won’t lie and pretend that I totally agree. I’ve known liars who were SO impossible to catch. I think someone might have to have a touch of honesty in them to be caught lying :)

  30. Regina

    On August 21, 2008 at 7:41 pm


    Interesting… I won’t lie and pretend that I totally agree. I’ve known liars who were SO impossible to catch. I think someone might have to have a touch of honesty in them to be caught lying :)

  31. Paul Faulkenham

    On August 21, 2008 at 11:51 pm


    Many con men and or women can look someone straight in the face, not blink an eye or rub their throat and lie through their teeth doing it. Yes you can tell by the eyes, but not in all cases. I’d love to know where you got your research for the article you wrote?

  32. Paul Faulkenham

    On August 21, 2008 at 11:51 pm


    Many con men and or women can look someone straight in the face, not blink an eye or rub their throat and lie through their teeth doing it. Yes you can tell by the eyes, but not in all cases. I’d love to know where you got your research for the article you wrote?

  33. mae

    On August 22, 2008 at 12:36 am


    Some people are great liars. When my son was seven, he already had the talent. A real tale weaver! A real pain ! Nice tips.

  34. mae

    On August 22, 2008 at 12:36 am


    Some people are great liars. When my son was seven, he already had the talent. A real tale weaver! A real pain ! Nice tips.

  35. tweetysmart

    On August 22, 2008 at 1:24 am


    Hey! I really liked this article , cause liers are every where and they are surrounding us almost of the time…even we!our selves! some times we lie to our own selves! like we do things and we predict that we are very interested about it while we don’t! for example sometimes some one study hard to be a doctor while in the origin he’s born to be a real artist!
    At last alwayz remember that life has two rules:
    Rule No 1: Never Quit
    Rule No2: Always remember rule No1

    Again thank you for the nice article and God Bless you!

  36. tweetysmart

    On August 22, 2008 at 1:24 am


    Hey! I really liked this article , cause liers are every where and they are surrounding us almost of the time…even we!our selves! some times we lie to our own selves! like we do things and we predict that we are very interested about it while we don’t! for example sometimes some one study hard to be a doctor while in the origin he’s born to be a real artist!
    At last alwayz remember that life has two rules:
    Rule No 1: Never Quit
    Rule No2: Always remember rule No1

    Again thank you for the nice article and God Bless you!

  37. thingmebub

    On August 22, 2008 at 4:34 am


    Isn’t all this “psychology” stuff just making people more paranoid?When I talk to people,I get a gut feeling,and I check them out if I’m not happy with that feeling.As ehem ..primates,we’ve been living in some form of social soup for maybe millions of years.What’s disappointing about articles like these is that they’re just boring retreads.There may be some truth in them but who cares!It’s been said by some nerd before and it’s hardly earthshaking!The most instructive,entertaining and heartening thing about them are the comments.

  38. thingmebub

    On August 22, 2008 at 4:34 am


    Isn’t all this “psychology” stuff just making people more paranoid?When I talk to people,I get a gut feeling,and I check them out if I’m not happy with that feeling.As ehem ..primates,we’ve been living in some form of social soup for maybe millions of years.What’s disappointing about articles like these is that they’re just boring retreads.There may be some truth in them but who cares!It’s been said by some nerd before and it’s hardly earthshaking!The most instructive,entertaining and heartening thing about them are the comments.

  39. Rookie Expert

    On August 22, 2008 at 2:04 pm


    Truly helpful. I swear, im not lying!

  40. pyerse

    On August 22, 2008 at 8:19 pm


    See, this works for the rookie liars, but not if the person is very talented at lying, in which case, you cant tell if their lying because they would know how to prevent these types of signs

  41. Angie Jane

    On August 23, 2008 at 2:24 pm


    A theory like yours is already extreme in its posturing.

    Evidently, people who are unfamiliar with the dialect or the language, or who are uncomfortable with you, or who think that you are a liar will be judged according to your test as being liars.

    Moreover, if I punch a hole in your theory, I am innocent.

  42. tonisan60

    On August 24, 2008 at 10:13 am


    Interesting tips Marcus, if you want to go deeper in this work try any book of NLP, neurolinguistic programming.
    My applauses to yor work.

  43. Coliny

    On August 28, 2008 at 9:14 pm


    It’s interesting. I’ll tell my friend about this. She doubts her husband is a bisexual on the online service BILoves, but she is not sure. Maybe she can try the above methods.lol

  44. taknakbagitengokdotwordpressdotcom

    On August 29, 2008 at 7:17 am


    liar, it takes one to know one…
    muahahahaha

  45. A. Whole

    On August 29, 2008 at 10:30 am


    It’s EZ the tell if a woman is lying cause her lips are moving.

  46. Lauren Axelrod

    On August 30, 2008 at 8:27 pm


    Great article Marcus.

    Just in case you wanted to check out “An overabundance of trolls on triond”, that would some up some of the nasty, uneducated comments that have been circulating.

    I liked it.

  47. me

    On September 4, 2008 at 12:05 am


    ’shopped

  48. scottb

    On September 20, 2008 at 5:59 am


    Who are the idiots that got this ignorant garbage onto StumbleUpon? This writer doesn’t know what they’re talking about.

  49. IDK

    On October 9, 2008 at 8:20 pm


    I WORK WITH SOMEONE THATS LIES ABOUT SOME OF THE STUPIDEST THINGS LIKE BEING MARRIED.IF YOU ARE MARRIED YOUR CO-WORKERS WOULD SEE YOUR”HUSBAND” AS SHE ALWAYS SAY.WE HAVE ALL WORK WITH THIS GIRL FOR 2 YEARS NOW AND NOBODY HAS SEEN THIS MAN.WE HAVE SEEN EVERYONE ELSE’S HUSBAND’S OR BOYFRIEND’S BUT NOT HERS.SHE SAY HE WORKS OUT OF TOWN ALOT THAT HE IS A TRUCK DRIVER.BUT THE STORIES SHE TELL DO NOT ADD UP

  50. Roberto @ Psychbits.com

    On November 8, 2008 at 10:33 am


    Very good article. This goes inline with what I wrote about recognizing a liar.

    I disagree with comment #42 by scottb. Your arguments are supported by multiple research.

  51. X

    On November 19, 2008 at 10:39 am


    How can you tell if someone is lying or telling the truth, if you do not know what the persons baseline behaviour is?

  52. OxentroT

    On January 6, 2009 at 5:27 am


    Also a nice tip while talking to the possible deceiver. After having answered an open question or a question that requires
    a good deal of information such as a story or summary you can retort with a classic “I’m sorry I didn’t quite grasp that, can you please clarify?” or something similar in nature. The deceiver may even signify things as obvious as an increase nervous and may stumble or trip over words as he/she is trying to duplicate the story/answer to the exact detail.

  53. Figures

    On January 23, 2009 at 6:12 pm


    It is a very good article but not all liars will avoid eye contact and some honest people will sometimes avoid eye contact when you ask them to remember something. I know that I look away when i am trying to remember something because it helps me remember. Also if you are a very timi person you might look away from the accuser because it helps you feel more comfortable. But anyways if you do not trust a person to tell the truth it is only because you yourself tell lies and you cannot trust others to be honest simply because you beleive that other people are just like you. And if we do beleive lies it is not because you want to believe the person who is lying to you but because you want to beleive that there are actually honestpeople in this world

  54. plkojf

    On March 10, 2009 at 2:28 pm


    You copied it from blifaloo jou mamparra

  55. Christina

    On March 12, 2009 at 7:53 pm


    I heard somewhere that if a you ask a suspected liar to repeat a story backwoards, they have a hard time, and youcan tell they are lying.

  56. stevea

    On April 12, 2011 at 2:59 am


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