What does expression include?

Facial expression: is through the eyes, eyebrows, mouth and facial muscle changes to show emotional state. Physical expression: human emotional state, ability characteristics and character traits, sometimes can be expressed spontaneously or consciously through the body posture, thus forming a physical expression. Speech expression: language itself can directly express the complexity of human emotions, if coupled with the appropriate tone of voice, it can be more rich, vivid, complete and accurate expression of human emotional state.

Facial expression refers to the expression of various emotional states through changes in the eye muscles, face muscles and mouth muscles. Gestural expression can be divided into body expression and gesture expression. Body expressions such as cupping and laughing. Expressions are categorized into three types: facial expressions, body expressions and verbal expressions. Facial expression is through the eyes, eyebrows, mouth and facial muscle changes to show the emotional state.