to create impressions beyond the verbal element of communication;
• to repeat and reinforce what is said verbally;
• to manage and regulate the interaction among participants in the communication
exchange;
• to express emotion beyond the verbal element;
• to convey relational messages of affection, power, dominance, respect, and so on;
• to promote honest communication by detecting deception or conveying suspicion;
• to provide group or social leadership by sending messages of power and persuasion.