Well, seeings as she remembered well enough who he was, he didn't bother introducing himself. He did, however, flush and shift somewhat awkwardly when she admitted to having a crush on him back in school. He instinctively wanted to ask why? Not for any other reason than he simply didn't see what all the fuss was about ... especially back then. He kept the question to himself, however, afraid to be given an answer that would have only embarrassed him further.
"I had a crush on my broomstick ... uh, no, that's not-" he snapped his mouth closed at that and rolled his eyes. That was not at all what he'd meant to say and that certainly wasn't what it sounded like. "I had a crush on Quidditch." He tried again, ignoring the amused look the bartender shot him at the correction. Oliver's return look said quite clearly where the bloke could stick said amusement.
A smile did tug at the corner of his lips when she assured him that she wouldn't act the fan girl. Whether or not she knew it, that actually helped a good deal to relax him. Even after all this time, he wasn't entirely comfortable dealing with overly excited female fans ... or male fans. He really didn't know how to deal with those. He just kept repeating the silent mantra of his PR rep. 'Just smile and get through it'. It worked fairly well. He hadn't had a mishap yet. "I'm pretty sure I wouldn't be able to write my name, even if you did ask. Besides, you don't look like a fan girl."