In the U.S., usually it's 15 - 20% of the restaurant bill. In Germany, typically people around up to next 5 or 10 Euro. It does not seem people do not tip that much or not at all in France - especially in the countryside (It is more once when I was try to leave extra 1 or 2 Euro at some cafe, the waiter or owner was looking at me like "What are you doing?"). What is a common practice in France? I would like to know for both in Paris and the countryside, and also, for regular cafes or restaurants versus Michelin star restaurants.