He really wasn't intending to stare for quite so long, but when he can't get out of his head that this teacher was just a swan... He curses himself for it when he's beckoned inside, but decides to come closer as indicated, a bit surprised to be shown a notebook.

"No, nothing," he replies, a bit unsure what he'll say if he's pressed for an excuse for why he was standing there gawking like an idiot. But maybe he can distract. "What happened to your voice?" He's never had this teacher before, so being talked to through a notepad seems pretty strange to him.