refers to a form of ordering food in restaurants.

Pusao restaurant is a unique way of ordering food in Laos. Due to the relatively backward economic development in Laos, there is no advanced ordering system in many places. Locals have invented a new way of ordering food, that is, customers only need to tell the proprietress the names of the dishes they want to eat, and then the proprietress will serve them according to their needs. This way of ordering food is very convenient and fast, and it is also deeply loved by local people.