When you enter a Japanese store or even a bar, you will be greeted by shouts of 'irrashaimase' (welcome) and when you leave there will be shouts of 'domo arigato gozaimashita' (thank you) and you will notice that everyone, even the chef will join in the 'chorus'! The difference you should notice is that they are all very service oriented and of course service is a pillar of Japanese business culture. In the US and Europe, personal service has become something that people must pay for with tips - in Japan there is no tipping, personal service is literally 'part of the service'.