French waiters are called “les garçons” but it is not acceptable to wave and shout “Garçon, garçon!” It is more polite to say: “Monsieur, s’il vous plait” meaning “Please, sir”. The traditional waiter’s outfit is a white shirt and black trousers which are both neat and clean. As a rule you should leave a tip for service if it is not included in the bill and it should be approximately 10% of the total bill. If you were served by the owner, he should not be tipped.
The waiters in Paris are very elegant!