Question: what are the key elements of nonverbal communication?
Answer: Facial Expressions. Without a doubt, the most common—and telling—nonverbal means of communication is through facial expressions. ... 
Body Movements. Body movements, or kinesics, include common practices like hand gestures or nodding. ... 
Posture. ... 
Eye Contact. ... 
Paralanguage. ... 
Proxemics. ... 
Physiological Changes.