He grins when she swats him on the arm, and he's reminded that he's officially gaining a sister very soon. He enjoys teasing Hermione; he enjoys that she seems to enjoy it, herself, now.

"That's what I'm here for," he assures her with a wink. He runs a hand through his hair at her next question. "Ah, unfortunately not. I need to find a job, but I admit, I have no bloody clue what I'm doing."