What if the neighbors set up a stall upstairs without shoes?

If he doesn't wear shoes, he can go upstairs to negotiate.

You can negotiate with the upstairs owners through the property that the neighbors upstairs disturb the people, and the parties can choose to call the police, complain to the competent department of ecological environment or bring a lawsuit to the people's court.

According to Article 58 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment, anyone who violates the legal provisions on the prevention and control of noise pollution in social life and creates noise to interfere with the normal life of others shall be given a warning, and those who fail to make corrections after warning shall be fined from 200 yuan to 500 yuan.