That is a trading secret of Wal-mart. When trading conditions are a bit difficult, the best thing to do is add lightness of touch. You go to the Asda store, they say hello and serve you nicely, and at the check-out they say some pleasantaries. That's how all stores should be. So, literally at most times of the year you can't wear a silly hat and sing a song, that would look silly, but a lightness of touch helps. When you spread lightness, customers also feel good. It is as if all the troubles of the world have disappeared, the here and now is a pleasant, cheerful environment. That is a trading secret, and more
stores would do well to adopt it.