In the audience at a taping of the "Ellen" show?
Then you'd better dance. Otherwise, as comic Zach Galifianakis explains, you'll be deemed a "person of interest" and potential troublemaker.
The story is that Ellen was watching me in her dressing room - and asked security if I looked weird or suspicious or something like that. My friend who works on the show overheard her and told Ms. Degeneris that I was a friendly - there is a little more to the story but I will keep that secret. But I was not at all asked to leave. If you do not dance with the creeps you are seen as a creep.
You can see the pre-show surveillance video here (Zach will be instantly identifiable):