As middle school students, we have to learn how to properly behave. The codes of conduct for us are as follows. Firstly, being polite and friendly to other people, both the teachers and the fellow students. secondly, all of us students are responsible for the maintaining of a beautiful campus environment, so that we have anappealing place to stay at and study in.thirdly, each of us are supposed to pass attend the classes on time and finish the assignments in a timely way. And finally, we should spare no efforts to glorify the excellent virtues of Chinese people.