Paul Ekman is amongst the globe’s most renowned experts on facial expression. His study is exact and nicely-researched. He has a section referred to as “Clues to Deceit” in his book which speaks extremely particularly about facial expressions & how they may be used to discover when people are lying. https://trevorezteo.elbloglibre.com/39425974/the-greatest-guide-to-how-to-read-body-language-guide