Hermione Granger

She raises an eyebrow at him at the way he says that, positively brimming with enthusiasm, but then just grins and makes her way to the dance floor, clearly expecting him to follow. The music is upbeat and catchy, some tune she doesn't know, but Steph starts bopping to the music once she's out there. It's not exactly graceful, really more goofy than anything else, but she has no dancing shame whatsoever.