How To Tell If Someone Is Lying, From Body Language Experts

After you get a picture of a person's baseline, it's easier to see when their behavior and behavior are changing. Casually bring up the conversation you think is lying, and watch for these subtle changes. For example, if you usually look to the right when you speak, see if you are suddenly making direct eye contact.

According to Rouse, the belief that liars don't make direct eye contact is wrong. In fact, he says, most liars will do the opposite. "When someone lies to you, they know that you think a person who is lying is breaking eye contact," he says. "So that they don't interrupt eye contact." This is one method of further deception.