position or movement of the facial muscles used to express
emotion, attitude, or opinion a gesture executed with the facial
muscles the expression on a person's face; "a sad expression";
"a look of triumph"; "an angry face" a high level description of
facial motions, which can be decomposed into certain muscular
activities, i a motion or position of the muscles of the face A
teacher can show how they feel through their face, e.g. smiling,
showing surprise. A facial expression results from one or more
motions or positions of the muscles of the face. These movements
convey the emotional state of the individual to observers.
Facial expressions are a form of nonverbal communication.