How to find a job as a summer waiter (dish washer, food delivery staff, cleaning staff) in Beijing in July? College students ~ ~ ~

I went to Beijing to find a summer job in July this year, but I didn't work as a waiter. If there are no relatives to find for you, the only way is to go to the door of the hotel and ask me if I want a waiter! Or they have posted "waiter recruitment" at the door, but don't look for it in the newspaper. Everything in the newspaper is deceptive, so you have to pay. Pay it and leave it alone! It's good to study at home and read some books during the summer vacation. There is plenty of time to experience, let alone earn money, except for poor students. The most important thing is to be careful when working in summer vacation!