In fact, gifts are just a carrier. Giving gifts is mainly to show your feelings. You are still students and don’t have much money, so it is best to choose gifts that are both economical and thoughtful.
You can observe what the boy likes. If it is not expensive, you can buy it. For example, if he likes playing basketball, you can give him a basketball. If he is more quiet, you can give him books.
If you don’t know these, you can make something for him by yourself. When I was in college, I made 521 little stars for my boyfriend by myself. Boys love face and like it. Besides, this is a labor-intensive work that takes many days. He will know your feelings at a glance.