Irregular body language and speech patterns are indicators of lying and deception. While everyone handles lying in different ways, some of the most common signs of lying include standing unnaturally still, blinking less than usual and touching the mouth.
Repeating certain word or phrases, speaking too fast and providing far more detail than necessary are some irregularities in speech that indicate potential deception. Some additional body language that marks a liar include feet and eyes pointing toward the nearest exit, backward movements away from those being lied to, and awkwardness in performing regular movements such as hand gestures. While many of these behaviors indicate deception, they may sometimes be caused by something as innocent as social shyness.