Some people, rightly or wrongly, apply their own interpretation of dogs' body language. For example, the submissive grin of a self-effacing terrier may be interpreted by owners as a smile. The owners laugh and reward the behavior, which is thus conditioned and will later occur on cue; "Have you seen Bonzo smile?" an owner might ask her friend. On hearing the word SMILE, Bonzo then approaches, head and neck bowed and body wiggling, as he displays a super-reinforced submissive grin that looks for all the world like a human smile. Because everyone is happy about this novel event, the smile even appears to occur in context.