Xavier raised a brow. "Then where do you work? I know you from somewhere, I'm positive - and it's not from school because that was far too long ago for my poor head to recollect," he said, giving her a half-grin.
She seemed quiet and a bit nervous. Was she hiding something then? Steeling himself (because for all he knew, she was a Mudblood), he held out his hand. "Xavier Selwyn, madame."