They are called salespersons, and they belong to the sales industry. The job of a promoter who sells clothes in a store is not only to greet customers, recommend clothes to customers, and help customers buy suitable clothes, but also to help customers try on clothes and answer customers' questions about fabrics. This profession is generally done by women, and they have to be good at speaking and be able to talk so that customers will buy clothes. This profession is very challenging and very helpful for self-improvement.

Promoters are usually also called shopping guides, and are generally sales personnel sent to retail terminals by manufacturers or agents. They play a very important role in the process of selling goods.