1. Why don't you take part in extra-curricular activities?
2. You should be yourself.
3. How about trying to learn about your classmates' interests and tell them about yours?
4. Do not be shy in any situations.
5. I would strongly recommend you to be friendly to everyone you meet in your school.
6. In addition, it is important to respect your schoolmates' opinions even if they are opposite to yours.
7. If I were you, I would suggest having fun to my classmates after school.
8. You can help your classmates with school subjects which you are brilliant at in case they don't know much about something.