For example, in Paris, if one desires to buy something, you enter the store and say "Good morning, sir" or "madam," depending on what is appropriate, you wait until you are greeted, you make polite chitchat about the weather or some such, and when the salesperson asks what they can do for you, then and only then do you bring up the vulgar business of the transaction you require.
Craig Ferguson, Between the Bridge and the River
france, manners, paris