Question

you have noticed that some of yours classmate converse rudely with the bus driver
with your partner discuss why you think they behave that way. what advice would you give them

Answer 1

''You had better stop conversing rudely with the bus driver .'' 

Answer 2

see firstly you will appologise to bus driver on ur friend's behalf.
then u can ask him that if someone of smaller than u talk rudely to u  . would u like it
i m sure the class mate would of course not like it 
then tell him that bus driver is big from u and u should respect him like ur juniors respect u
i think it is surely enough to make him understand