If you smile while shaking hands and saying "hello," your nonverbal communication is your verbal communication.

Your nonverbal communication is complementing your verbal communication if you are smiling while shaking the hand.

Explanation:

Transmission of a message or a signal through a non verbal platform is known as non verbal communication. It can be done through facial expression, gesture, eye contact and the distance between the two individual.

Some scholars believe that the non verbal communication is the most trusted communication. It is always related with the verbal communication.

When we smile while shaking the hand then we are complementing our verbal communication through the non verbal communication.