Have you ever had the feeling in a conversation that what is being said could be a lie? Wouldn’t it be cool to know some deception body language sign that could tell you if the other person is dishonest to you?
Unfortunately, no such single sign exists that could tell you with certainty whether a statement is true or false. Lie detection is a complex behavioral analysis that never trusts a single behavior that has been torn out of context.
But there are several behaviors that occur more often when someone is nervous, feels unwell, or wants to hide something from you. Depending on whether these behaviors deviate from the person’s usual behavior and what their context of occurrence is, they may indicate a lie.