Many years ago, when people wanted to send things, they needed to go to the post office and then it took a few days to let other people receive them. But with the development of the society, today the deliver industry develops very fast. People can receive their products in a short time. There are many deliver guys to deliver customers’ packages in time, no matter it is rain or hot. Some people are very impolite when they receive the package. They get angry for getting the package not in time. So they give the long face to the deliver guys. We should be considerate, and smile always works better than anger.