So-called "nervous habits".
D000328:Adult; D001007:Anxiety; D005120:Extraversion, Psychological; D005246:Feedback; D005260:Female; D006184:Habits; D006225:Hand / Q000502:physiology; D006257:Head / Q000502:physiology; D006801:Humans; D007866:Leg / Q000502:physiology; D008297:Male; D009043:Motor Activity; D009497:Neurotic Disorders; D010551:Personality; D010555:Personality Inventory; D012737:Sex Factors; D013315:Stress, Psychological