When we speak, other people “read” our voices in addition to listening to our words. Things they pay attention to include your pace, your tone and inflection, and your fluency. Our voices also convey emotional meanings: joy, sarcasm, anger, affection, or confidence.
Nonverbal messages (facial expressions, gestures, posture) have a huge impact on the quality of your personal and professional relationships. The way you communicate affects how others see you, how well they like and respect you, and whether or not they trust you. It is not just what you say; it is how you say it.