Do you know what nonverbal language is? Even if you can’t define it, you speak it every day through your postures, gestures, facial expressions, and tone of voice, and you must constantly read these same signals from others. In fact, nonverbal messages can carry up to 90 percent of the meaning of human interaction and contribute significantly to socialize, academic, and professional success. Yet even though we recognize the importance of nonverbal communication, we have generally left the teaching of this essential language to chance.