Mal held a hand up towards Kaylee signaling for quiet as well as for her not to move. It was a round about way of saying she didn't have to go back to the engine room. Moving towards the porthole, Mal glanced through the thick glass panel to view the self-proclaimed "wizard".
If this guy was a wizard, then Mal was a member of the Londinum Ballet. He smirked, his gaze flickering back to Kaylee for a moment. "You in need of some wizardin' there Kaylee?"