Now you are a big seller in the children's store in it you just one, but you need to serve a very large number of people, each of whom are very hurry and nervous. In this regard, you need to act very quickly. Quickly find out what the buyer wants and run for a commodity product to put the customer in a basket and go to the checkout to knock the money and write a check. And it is desirable to do, before the upper scale devastated his mood.