Dear Sunny,
It”s very good that you want to be friends with this girl.In my opinion,you”d better first have a heart-to-heart talk with her,because understanding each other is very important for you two.And I also think its better for you to ask her to join you and your classmates in all kinds of activities,such as birthday parties,going out for a walk,discussing some fashionable topics,and so on.Besides,helping each other is also very important for both of you.Just share happiness and sadness with her.And I believe she will understand you in time and it is certain you will be good friends in future.Good luck to you.
Yours,