[Alucard does Vanessa the basic kindness of not watching while she browses the shelves. It seems a rude thing on principle, and so instead his eyes go to the window. True enough, there's nothing out there, but it's better than staring at a person constantly.

At her question, Alucard's gaze does return and he notices how Vanessa has chosen to carry herself.]

It is, yes. And you can touch whatever books you like, this isn't a museum or restricted library. You won't upset my organization.