Personally, I think it is the best way to borrow a meal card. You can ask the other person to leave your contact information on the grounds that you don't have change, so that you can return it to her next time. If the girl says no, you should also insist, showing that you are serious about not letting the girl invite you to dinner. If she really doesn't think it is necessary, then you can say that you should leave your contact information with a friend, and most girls won't refuse you.

Second, ask the girls how the food in this window tastes.

You can line up behind her and say, "Classmate, is the food delicious here?" Why are so many people waiting in line? "At this time, the girl may look back at you in surprise to see if she is talking to you. At this time, you can be embarrassed to explain that you seldom come to the cafeteria to eat, and you don't know how it tastes. If a girl is a little kinder, she won't be stingy to introduce her to you. After all, this is something she is familiar with.

Third, you can put your plate next to her and let her look at it for a while, saying that you are going to buy drinks or something.

Generally speaking, if you ask the other person for help, the other person is unlikely to refuse you just to show her kindness. You can sit directly next to her when you buy a drink. Of course, you should ask politely, "classmate, can I sit here?" Most people don't refuse. At this time, you can chat with her while eating, which is not far from her contact information. Most of the girls on campus are simple. As long as you are thick-skinned, brave and confident, chatting up is not a problem.