For example, Beijingers like to call girls "girls", so what do Sichuanese call them?

The collective name of young girls: "beauty"

The relationship between girls can be called "dear"

Sichuan girls don't like being called "miss";

When calling "little sister", it depends. Sometimes the waiter in the restaurant is also called "Little Sister".

When you are not the youngest in the family, but you are much older than her, you can also call her "little sister" or "little sister".