A good friend

I meet my best friend Zang at school. He is short and a little fat. However, he has a smart brain. He always gets high scores in exams. There is one special point what really appeals to me. That is he is humorous. Sometimes we play games or sports together, and I lose sometimes. He will say, "Are you practicing now? Let us do it one more time. You must be better than before!" And he will teach me how to do it better. Furthermore, he also helps me when I need a hand. Last time, I lost my watch after we played basketball. I was so worried about my watch because my mother just bought me last month and it worthed a lot of money. The worst thing was that it was 8'o clock in the evening. To my surprise, he brought me a frashlight after I called him and I was so appreciated. I think he is my best friend I've made.