The Schizoid Personality Disorder* is characterized by a pervasive pattern of social detachment and a restricted range of emotional expression. For these reasons, people with this disorder tend to be socially isolated. They don't seem to seek out or enjoy close relationships. They almost always chose solitary activities, and seem to take little pleasure in life. These "loners" often prefer mechanical or abstract activities that involve little human interaction and appear indifferent to both criticism and praise. Emotionally, they seem aloof, detached, and cold. They may be oblivious to social nuance and social cues causing them to appear socially inept and superficial. Their restricted emotional range and failure to reciprocate gestures or facial expressions (such a smiles or nods of agreement) cause them to appear rather dull, bland, or inattentive. The Schizoid Personality Disorder appears to be rather rare.