It is good to know history about your martial art so you can improve your skills, and enlighten others. Giving your best effort is needed to excel in your art. If you want to advance, you must try your best. Always ask questions, and you will always get an answer, even if it's not the one you are looking for. This will benefit you greatly by learning and when it comes time for you to teach.
Respect is one of the most important responsibilities.
It is important for person to respect others and one's self. You will not get anywhere in class if you don't respect your teacher and classmates. Don't contradict you teachers, they know what is best. In conclusion all off the above responsibilities in your class and yourself will make you a great student in martial arts.