A very insightful viewpoint from someone on the coalface.
Coming from an Island (although not tropical by any stretch of the imagination) with a so-so attitude to service, I've always been amazed by the level of service in the States.
First time in a packed American bar, me and a friend were resigned to the prospect of waiting for eternity for a drink, when a barman immediately snapped me out of my reverie with a friendly "what're you having?". I've since seen that level of service repeated in every bar and restaurant in every State I've been to.
The downside for Americans (without wishing to generalise) is that expectations could therefore be artificially high when traveling to another country.
Personally I'm more interested in friendly rather than speedy service. In most cases, good manners and a friendly, sympathetic attitude will be reciprocated. Conversely, my absolute pet hate is rudeness to a server through a sense of superiority or entitlement. It's outright bullying and should not be tolerated.
You can tell who a person really is