How do you get on with your classmates? I think it's easy to answer that question.
If you meet up with your friends, you can say, hello! your friends must be happy, they will think that you are a polite girl or a boy!
If your friends have some questions, you should help them. They'll thank you for your help.
My classmates are very helpful and polite. If one of my classmates has some problems, my classmates will help them solve it. So they are excited.
We help each other and take care of each other.
I hope you can be a polite and helpful child, and I hope you can get on well with all of your classmates.