WHAT

What I thik is about presents. What's presents?
I had a party at last Friday. The party was a party of my club.
Then Tomoya bought a coffee for me.
His birthday is tomorrow. So, I'm planning to buy a coffee for him as a birthday present.
But my junior is same birthday with him. So, I'm planning to buy something for her.
But I will have to buy something for other junior, too.
So, I have to buy presents for them tomorrow morning.
What will make them happy?