She thinks he's joking, all right - it's just the second sentence that strikes her as ludicrous. Enough so that she peers at him for a moment, trying to figure out if he was serious about any of what just came out of his mouth. She doesn't get a sense of deception from his shadows, though, and she lets out a huff of surprise.

"You've got vampires asking for that? Are you sure they're not just poseurs or something?" Because in her universe, and outside her own admittedly unique experience, if you've got a vampire talking to you and you're not interviewing them for the ten o'clock news, you're about to be eaten. They're not going to ask you to spot them a few thousand blinks or if they can crash on your couch for a few days, they're going to ask you if you wouldn't mind being devoured... and there's a pretty good chance your under-the-dark answer is going to be, 'no, not at all, please help yourself.'