A smile and eye contact may insult someone.
D003469:Culture; D005006:Ethnicity; D005149:Facial Expression; D005403:Fixation, Ocular; D006801:Humans; D007198:Indians, North American; D007398:Interpersonal Relations; D012054:Reinforcement, Psychology; D012057:Reinforcement, Verbal; D012904:Smiling; D013663:Teaching / Q000379:methods*; D014110:Touch