Coach Parlier knew that Felicia's smile was not sincere because she was smiling with her mouth but not "with her eyes." What feature allowed the coach to determine this?

Question

Quizplus · Accepted Answer

Morphology refers to the specific physical characteristics of facial expressions, such as the involvement of certain muscles around the eyes that typically engage in a genuine smile (often referred to as a Duchenne smile). This feature allows someone to distinguish between a sincere smile and one that is not.

Coach Parlier Knew That Felicia's Smile Was Not Sincere Because