Realizing that he was probably unsettling the girl, he tried for something of a more relaxed expression. It was easier when he realized that she was one of the imPorts who had come in for the dinner, not having had much of an opportunity to see much of her on the Network. He'd thought he could recognize the voice, and now that he'd started combing his memory for it--

Ah. One of the people who'd offered help with the murder investigations a few months before.

Well, that earned her his approval straight away, although he did dock a few points off for mentioning Sirius.

"I believe the last time I saw Black was arranging crackers in the dining hall," he muses, the first two words more an affectation for her benefit than anything else, as his perfect memory meant he knew perfectly well that it was where he'd spotted the boy. "If that is of any help."