In my school there are several rules that must be followed.
We must not consume any sort of alcohol based drinks. We are also not allowed to smoke or to be under influences of Recreation drugs, this includes cannabis.
We should be fully concentrated During the lessons. No mobile phones allowed. Eating and drinking is also prohibited during the lecture. You must never be late. Teachers will never accept it.
Between the lessons we are given a break time. During this time we shall stay calm. This means no running and loud behaviour.
We should change our shoes when entering the building.
Most of all we should listen to our teachers and be polite.
We are allowed to engage in conversation with our friends only on break time.
Thanks God we don't have to wear uniforms. :)
I hope it helps. If you need simple versin