camo-dancer

Someone who will only engage in any and all forms of dancing when in a crowd of people, or "camouflage" with the other people, so as not to embarrass themselves or single themselves out.

Someone who engages in camo-dancing

I'm not too good at dancing, but I still enjoy moving to the music, so I prefer to be a bit of a camo-dancer because I can still enjoy dancing without feeling like a complete fool.