Two views of conformity. One a stranger trying to fit in, the other strange people rehearsing to try to enlighten the unwashed masses. They're both funny scenes, although only one is intentionally so.
By the way, I'm beginning to form the opinion that flash mobs are more obnoxious then mimes. At least mimes stay quiet in their invisible boxes so they're easy to ignore. Can you imagine having to stand in a line at a bank with those four lummoxes stomping around and singing "Human Rights are hot"?