> In the US, the waiters are constantly interrupting and bugging the customers, hoping for a bigger tip. In Europe and Japan, this doesn't happen; you need to signal to your server that you need something...
There are restaurants in Seattle that I've stopped visiting for anything beyond takeaway because my wife and I can't hold a conversation for more than a few minutes without being interrupted. It is very frustrating.
On the other hand, when we have taken friends to the places we like that are far more laid back, at least one person has commented on how the service is "poor" or "inattentive." I think we are culturally used to being asked if we need service and are reticent to go find help or do for ourselves (except when it comes to using a machine at the grocery). So I'm not sure it's solely in search of a better tip, except that everything in a US restaurant is for that.
Foodservice in Europe, broadly, is one of those amazing but unexpected things I tell people who are preparing to travel for the first time to really look at and try to enjoy. It's wonderful, in my opinion.