After reading various blogs and coming up with a plan, my wife and I are enjoying our first trip overseas in Paris. We just had our first complimentary breakfast at the Park Hyatt. It was delicious! We have been given the buffet for free and then paid the difference for the American so we could try the incredible eggs. My question is what the etiquette for tipping in the hotel for breakfast? I really appreciate any help as we don't want to look like the ugly Americans.