This booklet discusses four aspects of nonverbal communication: understanding silent language; nonverbal communication in the classroom; how the unspoken, unwritten curriculum operates; and measuring nonverbal behavior. The discussion focuses on the nature of nonverbal communication, nonverbal communication and involvement, humaneness and the study of communication, nonverbal communication in humanistic management, using nonverbal behaviors as instructional tools, how to become a better communicator, and the encouraging-restricting model. (JM)