Taipei kids dancing in the metro

I'm pretty sure this was at the Zhongshan metro stop. I was at a handful of Taipei metro stops yesterday, and I don't remember exactly, but this particular metro concourse featured about four or five different cliques of kids, junior high and high school it seemed, each a group of a dozen or more, and each ostensibly interested in dancing but more adept at standing around and looking cool while not actually dancing. But from time to time, they would dance (albeit briefly).