Shikamaru's brows raise sharply when the trash can practically leaps into the air. He could stop it, if he wanted to expose some of his powers, but the fact remains that this guy is practically a stranger to Shikamaru, and keeping his abilities mostly hidden might come in handy later. Just in case they're ever on opposite sides of a matter.

"Wow," he remarks lamely, reaching into his pocket for his cigarettes. Pulling one out for himself, he holds the box out for the man. There's the possibility that he doesn't smoke, but the gesture's worth making nonetheless. "Looks like you just got a major disappointment handed to you. Sorry about that."