Her own movements slowed for a moment, and she watched him with her head tipped slightly to one side and a lopsided smile on her face to match. Was he dancing? Sort of. Rather than teasing him about it, though, she figured the best course of action would be some very gentle constructive criticism.
Stepping closer to him, she placed her hands on his hips and moved them for him, more fluidly than he'd been doing on his own. "It's not hard," she said with a small grin, looking up at him. "Just...don't think about it. You're too stiff, you need to just go along with the music."