Paul Ekman is one of the environment’s most renowned industry experts on facial expression. His exploration is exact and perfectly-researched. He has a section called “Clues to Deceit” in his book which speaks very specially about facial expressions & how they can be used to establish when consumers are lying. https://how-to-read-body-language85543.gynoblog.com/38123779/details-fiction-and-how-to-read-body-language-video