This document discusses different types of non-verbal communication, including body language, space, time, paralanguage, color, physical context, and silence. It describes how body language includes facial expressions, gestures, postures, and physical appearance. Space refers to the distance between individuals, which varies between cultures. Paralanguage conveys meaning through vocal qualities like rate, tone, and pitch. Color and physical context can influence communication through things like office decor and layout. Finally, silence itself can transmit inner thoughts and attitudes.