How to Detect Lies



Please note we brought you this detect lies article with some help from our psychology buddies at

Warning: sometimes ignorance is bliss. You may be hurt with what we will be showing you when it is obvious that someone is lying to you. You know we will tell you even the police, forensic psychologists, security experts and other investigators use these methods. This one is the truth!

Introduction to Detecting Lies:

This knowledge is also useful for managers, employers, and for anyone to use in everyday situations where telling the truth from a lie can help prevent you from being a victim of fraud/scams and other deceptions.

This is just a basic run down of physical (body language) gestures and verbal cues that may indicate someone is being untruthful. Remember: these signs don’t indicate someone is lying, just that they are more likely to be lying.

If you got here from somewhere else, be sure to check out our Lie Detection index page for more info including new research in the field of forensic psychology.


Body Language of Lies:

• Physical expression will be limited and stiff, with few arm and hand movements. Hand, arm and leg movement are toward their own body the liar takes up less space.• A person who is lying to you will avoid making eye contact.

• A person who is lying to you will avoid making eye contact.

• Hands touching their face, throat & mouth. Touching or scratching the nose or behind their ear. Not likely to touch his chest/heart with an open hand.

Emotional Gestures & Contradiction

• Timing and duration of emotional gestures and emotions are off a normal pace. The display of emotion is delayed, stays longer it would naturally, then stops suddenly.

• Timing is off between emotions gestures/expressions and words. Example: Someone says “I love it!” –  when receiving a gift, and then smile after making that statement, rather than at the same time the statement is made.

• Gestures/expressions don’t match the verbal statement, such as frowning when saying “I love you.”

• Expressions are limited to mouth movements.  When someone is faking emotions (like happy, surprised, sad, awe, )instead of the whole face. When you smile naturally, your whole face is involved – jaw/cheek movement, eyes and forehead push down, etc.

Interactions and Reactions

• A guilty person gets defensive. An innocent person will often go on the offensive.
• A liar is uncomfortable facing his questioner/accuser and may turn his head or body away.
• A liar might unconsciously place objects (book, coffee cup, etc.) between themselves and you.

Final Note, very important

Obviously, just because someone exhibits one or more of these signs does not make them a liar. The above behaviours should be compared to a persons base (normal) behaviour whenever possible. Most lie detecting experts agree that a combination of body language and other cues must be used to make an educated guess on whether someone is telling the truth or a lie.

We have armed you, we like to read from you how you catch lying folks, share your ideas with us in the comment box below.

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