Roles within the group may be oriented to the task or relationships. Orientation toward the self rather than the group is negative. You are never not communicating. The FBI teaches that a suspect who looks to the left is lying. Walter Weintrab , who is a psychiatrist, studies the connection between personal communications and grammar.
Projection is a common ego defense.
Sarcasm expresses hostility. He promoted listening by repeating back his clients' statements, looking in their eyes and nodding his head. Workers may suffer from mental illness or mental effects of physical illness. Ten percent of adults suffer from alcoholism. Depression, currently in the news because of drugs like Prozac, is an emotion that prevents communication, often for years.