2 Talking loudly as if they are arguing.
3 It looks wasteful to have a lot of leftovers from a meal at a restaurant.
4 Square dancing on the street (Dancing in a public ****ing place is considered a shy thing by Japanese people.)
5 Crowds of people everywhere.
6 Toilets in small towns are dirty and some of them don't even have doors.
7 The seats in subway and bus are too hard (in Japan, they are all soft sofa seats)
8 Driving a car, honking the horn, the driver has no manners, unlike in Japan, where the car gives way to the person, but the person gives way to the car.
9 service staff attitude is not very good, no smile.
10 The food is a bit scary, I don't know if it is hygienic inside? Is it adulterated?
This is my experience of going to China. But there are many good things about China. For example, there is a variety of food and it is very delicious. The price of food is relatively cheaper than in Japan. Vegetables and fruits have a good flavor and are delicious! The human touch is stronger than in Japan.