If one of your friend is making disturbance to the class then ignore him or her . if you do so regularly the person will feel ignored and will automatically stop troubling and acting annoying.

hope dis stops the disturbance in ur class :)
If someone disturbs you in the class then give a stern reply that 'Is true that you IQ level below 0. Do not worry I will help you in improving it. And yeah you really need counselling yaar.' The fashion of ignoring does not have effect nowadays man.......
according to my classmates ignorance is the best medicine to stop disturbance
but littledude nowadays, the more we ignore, the more they enjoy.
They may picture u as a target that can easily made a puss.
i dont know if i ignore the ppl they stop troubling th class so for me its the best tip:)
okay watteva