Don't move around in class, don't throw garbage in get out of class, don't make loud noises in get out of class, don't play in the hallway after class, don't chase the class casually after class
Class do not move around, class do not litter, class do not loud noise, after class do not play in the corridor, after class do not casually rush class
Don't walk around in class, don't litter in class, don't make noise after class, don't play in the corridor after class, and don't jump into class after class<br>