Since you are going to be college classmates, you two should have met in the group during the summer vacation. I don't think you can refuse this kind of thing directly, let alone promise him at once. It needs careful consideration, so I think you should do the following things.

First, talk to him more about his basic information and personality. I think, at least know what he looks like and what kind of family environment is his personality? What are his plans for the future? Knowing all this, you can determine whether you two are suitable or not. Otherwise, if you promise him directly, it will end in embarrassment. Just refuse without asking anything. If you are a good candidate, it will be a pity that you refuse. So you two can talk about each other first so that you can make a better decision.

Second, through her space or circle of friends, see what he usually likes to do. What I just told you may not be true, but the state of a person's space and circle of friends can still reflect his basic life. If his circle of friends and space are all delicious food, and you happen to be a foodie, then I think you can promise him. If he likes to give lectures on reading, and you like sunny boys best, then you two don't have to be hard together. In this way, you can further determine his daily life through the circle of friends and space, and you can also make plans early.

On the third school day, think about it. Do you two want to start? Maybe he sent you a photo while chatting, but there are still some false parts. When you see it, you will know what he really looks like, whether he is your type, and whether you two eat noodles, whether he is a gentleman when eating, and whether he is very careful when holding paper towels, all of which can reflect the characteristics of this person. When two people are together, they must have feelings. Only when we meet, can we be connected and decide whether we should be together.