This question always trips me up for some reason, so I tried something a little different when answering. I basically quickly threw out phrases like that I'm a team player, active, blah blah. I think he was more seeing how my personality is, to see if I would fit in with the company and his team. I recommend having a few questions ready to ask, because the interview goes by quickly so you don't have a lot of time to show your personality if you only answer their questions.