Question

one of my school friend is regulary teasing me so what can i do?

Answer 1

asked ur teacher to tell him then also he cn;t understand so tell to principle or that  frirnd parrent may be he understand

Answer 2

i think u u tell him by his language means if he is teasing you don't see at him/her or do same thing with him
angry on him in class when everyone is there make feel him insult