This's my best friend.He is Yangjie.He is lively, but he sometimes very quiet.He and I are 12 years old, but he's 3 months older than mine.We get along very well with each other.He likes the subject is math, but the other subjects of his performance is relatively good.He is not very like sports.Although he doesn't like sports, but he is 164 centimeters tall. He doesn't like sweet food, so he is thin .This is my good friend.