I definitely wasn't cool in high school. I really wasn't. I did belong to many of the clubs and was in leadership on yearbook and did the musical theater route, so I had friends in all areas. But I certainly did not know what to wear, did not know how to do my hair, all those things.
Everybody uses mime and gesture in real life, though we don't realize it. It's very useful as a performance technique, though it can be boring to watch on its own.