By the time she was spitting out names, he had just about finished his ice cream. His reaction to hearing his name was purely reflexive, and thus harder to suppress now that he was a wolf. His ears flicked back, and his head lifted partway up.
He covered for this by finishing off the last of the ice cream and licking his muzzle. It had been good (amazing, actually-who knew ice cream could taste that good?), well worth approaching her for, but now it seemed like the girl was onto him. Leaving just now would seem suspicious, however, and if she was someone from the building he couldn't risk news of where he was getting back to anyone. So he stayed, laying on the concrete, looking up at her.