Answer:
non-verbal communication
Explanation:
Nonverbal communication, also called manual language, is the process of sending and receiving messages without using words, either spoken or written.
The term nonverbal communication was introduced in 1956 by psychiatrist Jurgen Ruesch and author Weldon Kees in the book "Nonverbal Communication: Notes on the Visual Perception of Human Relations."
Nonverbal messages have been recognized for centuries as a critical aspect of communication.
Similar to the way that italicizing emphasizes written language, nonverbal behavior may emphasize parts of a verbal message.
"The Advancement of Learning" (1605), Francis Bacon observed that "the lineaments of the body do disclose the disposition and inclination of the mind in general, but the motions of the countenance and parts do not only so, but do further disclose the present humour and state of the mind and will."
