Paralanguage-Meta communication

Paralanguage is most similar to verbal communication; however, it sends nonverbal messages in all phases of the communication process. Paralanguage refers to not what is said, but how it is said. Some of the characteristics of paralanguage include volume, rate, rhythm and pitch.

The major role of paralanguage is to express emotion. 

For example, research says that lower pitched voices are seen as more creditable.  Voice tone is used to detect deception, so a proper tone is most desirable.  Another form of para language is a raised pitch which would indicate emphasis, interest and excitement. 

Another form of nonverbal communication includes the pause, or use of silence.  Silence gives the idea a chance to be absorbed . 

Meta communication
The term meta communication to describe message that refers to other messages. Meta communication is an important method of solving conflicts in a constructive manner. It is not only tool for handling problems but a way to reinforce the good aspects of a relationship.