You learn a lot about customers and how to cater to them. You have to cater to everyone's needs and you need to make sure that they are satisfied throughout their entire shopping experience WITHIN the store policies. I myself usually stay out at the front and help customers and cash them out. I've learned a lot about teamwork and how to be a better sales person. The important thing is to not use pushy sales techniques because it gets customers less and less interested in anything you have to say.