Dear John:
Long time no see. How is it going? Do you remember me? I am Wang Gang.
I remember that you like make friends with others. So today let me introduce a new friend to you,you will be interested with him.
His name is Li Qiang, an interesting boy in our class. There is always a big smile on his face.He likes playing basketball and soccer. He likes reading English novels. We all like him in our class as he is pleased to help other students and be kind to everyone. He is really easy to get along with.yesterday I tell him something about you and to my surprise he wanted to make friends with you. Do you want to know more about him? Write to me soon. We are waiting for your reply.
Best wishes to you.
Yours
XXX(你的名字)