today is sunny and i am going to reveal a new day,everyday is new as i have to face different people.now i want to introduce my job,not everyone come to your shop have the intention to buy your products,then what your role is to persuade him to like your products,and pay for it.first you should what they need and what they can accept.then list some kinds of product for him to choose,do it be more professionally ,so you can win their trust.ok,that's my job. 字数够吗