Hold the mouse button to make him sing. I mean he doesn't actually sing but who cares. Of course if you press 1 he probably makes noise but who knows. Pressing 1-4 probably does something. 5 Most definitely does nothing. (anymore) Pressing Q also probably does something as well. Pressing Space also probably does something.
Update Added 2 new guys. Wow I think one of them have some kind of gimmick.
