1, don't say anything critical.
Although sometimes we will inadvertently blame others, if there is criticism in your words, it will inevitably make people feel uncomfortable and customers will naturally be unhappy.
2. Conduct business evaluation objectively.
As a salesman, you just need to say what you are selling. For some political content, it is best not to express personal subjective opinions, which may lead to unhappiness because of disagreement.
Be sure to pay attention to your appearance.
As a salesman, it is necessary to wear a suit and tie, so that customers will think that you value him more. If you dress casually and are untidy, customers' recognition of your products will also decline.
After graduating from college, if you become a salesperson, you must constantly understand your own quality, appearance, and the art of speaking, so that you can become a qualified salesperson.