Part of the communication in a group is verbal. Or, he can be persuasive with the same facts, encouraging his group to act on them. A common form of process is nonverbal communications. These are the responses one person gives another with his eyes, when he nods his head, or by turning away. These are the physical reactions that tend to indicate a person's support or lack of it for someone else.
Communication happens on several levels.
Some group members in a process scene are very skilled in communicating verbally with one person, while communicating nonverbally with a number of others. Since messages are sent verbally and nonverbally, subtracting either one will cause an incomplete meaning to be conveyed. Also, because both verbal and nonverbal messages are sent simultaneously, it is possible for body language to contradict what is spoken. Another way to analyze group process in terms of communication is to look at the communications network. This network is the way people communicate in a particular situation.