You must be polite for teacher. You should listen to the teacher carefully and not be distracted by friends.On the control does not need to write off from friends they may be wrong ,to think only yourself.Do not exchange notes in class and do not sit in the phone.The teacher always notices that the student is sitting in the phone, that offends the teacher because he thinks that you treat him with an object obscene.If you listen to the teacher and treat him well the teacher will treat you the same.
