Paul Ekman is amongst the globe’s most renowned experts on facial expression. His analysis is exact and very well-investigated. He has a piece known as “Clues to Deceit” in his book which speaks incredibly especially about facial expressions & how they are often accustomed to determine when folks are lying. https://ericklswnt.answerblogs.com/40022001/the-2-minute-rule-for-how-to-read-body-language-course