Shuangqiao is the place where everyone has a large flow in Ningda. There must be someone in charge of setting up a stall at the school gate. I suggest you set up a stall in Shuangqiao, where there are many snacks and students often go to Shuangqiao at night. And you can often see temporary stalls in Shuangqiao. But according to friends, it seems that someone will still take care of it. You'd better cooperate with a store and set up a stall in front of it, so if someone talks to you, say it's from the store and sold it for enrollment. But I did see a lot of messy booths and nothing happened.