A few different kinds.

[He doesn't exactly know what kind of background he has, but the steps that come naturally to him at least give him some kind of vague guess.]

I sort of end up falling back on ballet-based choreography when I'm working alone, but I know a little bit about ballroom dance and more modern, popular styles, too.

[He's being a little modest, honestly. He's hesitant about showing off, but he's got some idea of how to dance to just about anything.]