1.Don't arrive lat for class.You must be on time. 2.Don't run in the hallways. 3.Don't eat in the classroom_ You must eat in the dining hall. 4.Don't listen to music in class. 5.Don't fight. 6.Don't fight with someone. 7.Please do not trample flowers. 8.Save water. 9.Don't litter. 10.Save electricity.