Severus smiled, shaking his head, and began to serve himself, as well. "That's good to know. If I'm going to go to all the effort of moving my facial muscles, I'd best make each expression count." He paused again, looked at her pointedly, and arched his eyebrow once more, smirking. If she liked that expression the best, he might as well not hold back, since his aim was to show her an awfully good time. And besides, he didn't want to get soup on the poem he'd written her, so that would have to wait until later.