Tristan went a little blank when the handshake went on a touch too long - he wasn't sure what he was meant to do, or if he had done something - but he wasn't inclined to complain, really. She had a captivating sort of gaze, almost intimidating, and he found he didn't mind looking, although it threw him a little that she seemed so distracted. He was about to look over his shoulder when she spoke up.
His smile widened slowly. He identified, actually, with the rambling and the reading. "I'm glad you've gone home, then," he said. He'd known a few people for whom Hogwarts had been a second home, and he'd never lost his affection for it. People who shared that were all right, as far as he was concerned. "I know what you mean. I read all day, but - rather more slowly, I'm sure." He cast a slightly embarrassed glance down at The Twelve Dancing Princesses. "I'm a tutor - I've got kids from six years old to eleven. This is for a young lady who pays better attention when I can involve large, puffy dresses in some way." He cleared his throat gently. "... Not for me."