"I do," he said, fidgeting with his shoe laces. "They," he said carefully, "could look just like you and me." Though he could think of few species that really mirrored humanity as closely as time lords, he could think of many who came fairly close if one didn't count eye color or skin tone. There were also those who tried, like the Slytheen and their compression suits, and those who didn't.
"Me? That's an odd sort of memory, isn't it?" The Doctor was very good at slipping away and being carefully forgotten. People didn't hear about him at the fires of Pompeii or the sinking of the Titanic and whatnot. Some of his guises have been more forgettable than others; but, still this one was very much the most easily passed off of them all.
"Something like that," he responded to her assumption about Dean's occupation. Dean had told him he hunted things that went bump in the night - either he hadn't wanted to tell Shannon or it was among the things he didn't quite remember yet. Either way, it wasn't really the Time Lord's place to divulge it to everyone.