What kind of occupation is a "shopping expert"?

I can only say a little, I understand myself. To put it bluntly, shopaholics will be cautious. For example, if there are activities in the mall, he will try to send them, so that he will know how to buy what he likes and can buy what he likes at the right time. A shopping expert is teaching everyone how to shop. Such a career is as good as his brain. Becoming an expert is not that easy. Most experts study economics, or they are talkative and can bargain. For example, if you buy a pair of shoes 100 and the boss doesn't like to sell them, if you buy them at 80, the boss will readily agree. Emerging professions are not. Think about the word shopping, and you will spend money to buy an experience. I don't suggest you learn this unless you have a lot of money at home.