要写一篇英语作文是一个学生不擅长与人交流所以没朋友给他提点建议,要3条还要写出做了以后的好处（用英语

Try to talk with people who look friendly.A good beginning is half a good way.
Try to spend time on things that your classmates talk about.That can help you be easier to talk with classmates.
Don't be shy.