"Interpersonal dynamics" refers to the way in which a person's body language, facial expression and other nonverbal mannerisms support a verbal message in one-on-one, or interpersonal, communication. Accomplished professionals and leaders recognize the profound impact interpersonal dynamics have in motivating or persuading other people, and they work to develop effective nonverbal communication skills, explains About.
Posture, body movement and hand gestures are among the primary body language factors that contribute to interpersonal dynamics. A dynamic communicator stands tall, but relaxed, moves their body naturally and calmly and uses natural hand gestures to highlight certain points or to support action words. A smile, eye contact and a relaxed facial expression convey confidence. When a listener senses confidence from a message sender, it increases the likelihood he will buy into the message. Vocal expression is another nonverbal factor of interpersonal dynamics. An assertive tone, good volume, a relaxed pace, emphasis and inflection all impact a message. A person can change the entire construct of a sentence just by adjusting the points of inflection.
Another important element of interpersonal dynamics is the relationship between a person's words and nonverbal messages. Honest, clear and well-received communication occurs when words and body language closely match. When they don't, a listener may infer that a speaker is uncertain or dishonest.