As a student in modern society, obeying public rules in and outside school is important for each of us.
First of all, each of us should behave properly at school. In the school library, we should keep quiet. Returning books to the library in time is necessary. In the dining hall, we shouldn't make too much noise when waiting in line. And it's dangerous to run after each other or fight with each other in the classroom.
Besides that, we need to behave politely outside school as well. When we cross a road, we should obey traffic rules. When we enjoy ourselves in the park, we shouldn't drop litter everywhere.
I hope these tips can be of some help to you.
