To say Tris was being surprised a lot that day would be an understatement. What were the odds that this guy would be in the same year? Not horrible, admittedly, but not overly likely either. "Really? Fancy that." She laughed. At least he didn't seem to know who she was. Some people, of course, didn't care much, but others would write her off before even meeting her.
"Ravenclaw is.. quiet." Trisha admitted, shrugging. "There are quite a few of us, but we spend most of our time reading, or in the common room, honestly." Shaking her head, she looked back at him, "It's kind of lame." Letting out a sort of breathy, disappointed laugh she wanted to ask why she hadn't seen him around. But part of her felt that such questions were the type to scare people off. If someone asked her why they had never met her, it would probably end up with her being incredibly self conscious about the name people called her around Hogwarts. It wasn't like she didn't know about it.
"Oh," She began, surprised, "I, sure. Just something light." She shrugged. The only thing she wasn't used to was alcohol, because her parents were rather uncomfortable with the idea. Tris found that it sort of smelled odd, anyways.
Realizing she hadn't even mentioned her name, she turned in her seat to face him fully. If he found out who she was and left, at least she wouldn't have started getting on with someone who was going to abandon her later. "My name's Trisha Bates, by the way." She offered a hand along with her greeting.