the bodily activity of the speaker and the meaning the audience assigns to this activity
Body language
a technique for creating eye contact with audiences; the speaker moves his or her gaze across an audience from one listener to another and from one section to another, pausing to gaze briefly at each individual
Scanning
a speaker who remains static, standing stiffly behind a podium, and so resembles a televised shot of a speaker's head and shoulders
Talking Head
acts that create the perception of psychological closeness between the speaker and the audience members