how do u know if a person is lying?

Answer 1

Unless you know the truth there is no sure-fire way to tell if someone is lying with absolute certainty. Such things as shifting gaze (not looking you in the eye) have some value in the hands of an experienced interrigator but you have to know how the person behaves when telling the truth and look for differences in behavior or mannerisms. Even then, a highly experienced liar can fool even the most expert inquisitor.

Also, cultural differences may come in to play and if the questioner is not intimately familiar with this they may come to a totally incorrect conclusion. For example, in some cultures it is considered rude to look someone in the eye unless they are an intimate friend, lover, or family member. Such a person might well be deemed to be telling a lie by someone who mis-interprets their shifting gaze when in fact they are simply being polite!

Answer 2

They won't look you in the eyes, they'll look up, down, or past you. They will make the story last a long time by adding tons of information to it that is usually useless and not even pertinent to the lie. They fidget a lot and if you ask if they're lying they will always look you in the eye and say "no", but will look away quickly and try to change the subject. They will touch their face a lot, too, especially around the nose area. Sometimes, they'll sweat, even when it's cool. A truth-teller will make eye contact, stay on the subject without embellishing it, and it's simple and matter-of-fact.

Answer 3

There is no way to know for sure if a person is lying unless you have the necessary information. If he/she says they didn't go to the mall on Friday night and you saw them there, you know they are lying. My own personal opinion (yeah, it's a bit negative) is to assume they are lying if their lips are moving.

Answer 4

Research shows the following:
"increased incidence of leaning forward, licking the lips, touching the nose, averting the gaze and handling objects. An insincere smile, characterized by lack of movement of the wrinkle lines around the eyes is another well know indicator of lying. People who are lying also often reveal themselves verbally. Verbal cues include the increased use of verbal qualifiers or modifiers, the use of expanded contractions (e.g. I did not rather than I didn't), stuttering, throat clearing and speech errors." ("Science of Lying" Sean Henahan, 1999)

From my experience...dramatic pauses, sweating, swallowing before speech, excessive eye movement and lack of eye contact or excessive/abnormal eye contact. Anything extreme.

Answer 5

Sometimes you don't if they are really good at it. I'ts easier to tell when it's someone you know. Generally not making eye contact or touching mouth or face while speaking are two signs. Extreme agitation is a sign I recognise from people I know. Nothing makes a liar angrier than not being believed. They will attack your character and motivations for not believing them. They will try to make you think you are unreasonably distrustful, even if they have given you reason to feel this way in the past. This type of person will drain you dry if you don't learn to trust yourself.

Answer 6

Unless the person is a professional actor or liar - the general rule is a) if they look you straight in the eye, he is not lying
b) if they look up, a small chance that he is lying
c) if they look down, a high probability that he is lying

Answer 7

Generally, they can't make eye contact. The good liars can so look for other signs, nervous behavior, too many details, inconsistant answers. Make sure to ask about some of the details after a few days have passed and make sure they still have the exact same story.

Answer 8

You can just feel the force!!
haha no I'm kidding, there really isn't a for sure way to know, because some people are great at lying! ;(

Answer 9

Watch "The Negotiator" with Samuel L. Jackson. Different eye directions access different parts of the brain. One direction (I think down and to the left) helps show that the person is activating the creative portion of the brain and another direction (I think up and to the right) accesses the memory portion of the brain. Also, watch for gestures and expressions.

Answer 10

Most of the time, i can tell when people are lying when they start avoiding eye contact.