For starters, it’s important to understand how people communicate. And it be might a shock to learn that communication is less about the words that come out of a person’s mouth and more about the tone of their voice and their body language. Identifying a liar’s “micro-expressions,” which are a person’s involuntary facial expressions, is the best way to catch a liar.
In fact, this is a strategy used by the CIA. How do you notice these micro-expressions? There are seven universal human emotions: sadness, anger, contempt, disgust, surprise, fear and happiness. When a person’s initial facial expressions seem off and forced, that’s a sure sign they’re not telling the truth.
infographic by: www.behance.net