Using Nick's name definitely gets a response from Clementine. Her eyes widen in surprise and she blurts out quicker than she can think, "You know Nick? Yeah he... he and my other friend."

Her posture is a little less guarded but still on edge. "Who are you? I've never seen you before."

It might be he's someone Nick knows well, or equally someone Nick only knows in passing if he asked the man to be on the lookout for her.