Social Experiment - Most People Are Sheep
I don't think that would work with JWs. They are used to not participating in things. They would probably leave the room, and later regale the tale in a convention interview about the time "a whole room full of people was under a satanic trance", and how their refusal to go along with the crowd saved them from the involuntary blood transfusions taking place in the next room.
I was comparing that to mindlessly following tradition.
Beards, conventions, service. It's easy to add to the list here.