This document provides an overview of nonverbal communication and its importance. It discusses how nonverbal cues such as gestures, facial expressions, body language, touch, use of space and time can communicate much about feelings and convey different meanings across cultures. Nonverbal communication plays a key role in regulating interactions and complementing or contradicting verbal messages. It must be interpreted in proper context considering one's background. The document also examines differences in nonverbal behaviors across cultures to avoid misunderstandings.