Answer:
1:Nonverbal communication is the transmission of messages or signals through a nonverbal platform such as eye contact, facial expressions, gestures, posture, and body language. It includes the use of social cues, kinesics, distance and physical environments/appearance, of voice and of touch.
2: facial expression,gesture,para language,eye contact, proxemis,posture, haptics etc.
3: we use it to replace verbal communication, when someone asks " is it a yes?'' you can just simply nod your head
4: because sometimes in a situation, using verbal communication may seem inappropriate so you can simply do nonverbal communication
Explanation:
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