The consumption level is not high. General hotel prices range from 50-80 dollars a day, and cheap 15 dollars. Eating in the city, lunch and dinner is about 2-4 yuan. There are a large number of Chinese in the local area, and most of them do business near the old market. Most of them can speak English, and there is no problem in communication. I don't know much about etiquette, but Cambodia is influenced by Buddhism and Hinduism. Smoking is prohibited indoors, and most indoor places have no smoking signs.