Without uttering a word, an audience can be quieted by holding up the palm of your hand to calm a noisy crowd. this is the nonverbal function of

This is called substituting. This is a type of nonverbal or nonvocal communication. Writing, sign language, gestures, facial expressions, and eye contact are some other types of nonvocal communication. Nonverbal communication is mostly biologically based. Verbal communication is mostly culturally based.