I'm not going to contribute to my classmates gift
Why don't you want to contribute?
I am sick of people, especially those people in my class.
I can understand the feeling. It's not nice to be selfish, though.
I have the right to pay if I want to. They will pay if they want to.
It is nice to help contribute to a communal gift for someone. It's a gesture that can really make someone feel better, especially if they are going through a difficult time. I think it would be best if you helped out by contributing to the gift.