Paul Ekman has con­duct­ed exten­sive research on iden­ti­fy­ing emo­tions through facial expres­sions. As part of that research, and as part of the pow­er of dis­ci­pline and train­ing, he learned how to con­scious­ly manip­u­late 42 facial mus­cles, includ­ing many that in most of us are beyond our con­trol, and even awareness. In the 60s and 70s…