Facial micro expressions. The face is the best indicator of a person's emotions. Facial micro expressions are a universal system — everybody.
Detecting high-stakes liars is often the work of the FBI, and they frequently look to facial expressions, body language, and verbal indicators as signals, or "tells," that someone is lying. Mark Bouton, an FBI agent for 30 years and author of "How to Spot Lies Like the FBI," tells.
Lies are destructive, but certain facial expressions can help you determine when someone is lying to you. Understanding these expressions.