Everyone must have been invited to attend a classmate's class. Before the invitation, the corresponding rules will definitely be agreed, or someone will definitely invite this meal, or some classmate happens to have a birthday and wants everyone to get together. At this time, you don't have to worry about checking out. Just eat and drink directly after you go, and then send your own wishes, everyone will be very happy and don't have to worry about paying the bill.
Moreover, there is another situation. Some students may get along well after graduation and earn a lot of money, so they want to invite all students to get together and show off. At this time, everyone should be happier after drinking three rounds, and it is time to settle the bill after eating enough. At this time, someone will bow their heads and play with their mobile phones, or pretend to go out to the toilet, indicating that they have no intention of paying the bill. If you think your financial ability is ok, you can buy your salary, not to show off your wealth or to show off your strength, because everyone is so formal and meaningless. But if you feel that your salary is not enough, don't stand up and do your own thing.
Under normal circumstances, when organizing a class reunion, the rules will be explained in advance, and there will be a sponsor, so it is usually this sponsor who pays the money in advance. And in most cases, it is organized by the squad leader, so it is not difficult to let the students share the expenses in the group later. Or you can make an appointment with AA in advance before the party, and the students who come will definitely like AA. Just have fun.