What are the rules, etiquette or precautions for eating KFC? thank you

I think KFC must eat quickly. Since it is a fast food, we should respect its name, just as many of us regard it as a restaurant or teahouse, and stay for an hour or two or an afternoon, so that KFC always seems to have a prosperous business.

Besides, I think we should clean up the garbage and throw it into its dustbin after eating. If foreign countries do it themselves, there will be similar slogans on the windows, while domestic waiters will clean it up and some people will do it. ...