Woah! You have made it to your green belt, did it take you a few months to get it. Now your a green belt do you know quite a few kata's? You should know 1st kata and 2nd kata. Maybe your going to learn kata sifi, maybe you already know it? What I am saying is that as a green belt you need to know alot more stuff. Sensei expects you to. Sensei may ask you to do a warm up at the front.
When you are a green belt sensei expects you to maybe do more tournaments and WIN more tournaments. Anyway, train really hard and try some new things like tournaments. Have fun being a green belt.