Conversation Use the formal vous when speaking to anyone unknown or older than you; the informal tu is reserved for close friends, family and children.
Churches Dress modestly (cover shoulders).
Drinks Asking for une carafe d'eau (free jug of tap water) in restaurants is acceptable. Never end a meal with a cappuccino or cup of tea. Play French and order un café (espresso).
French kissing Exchange bisous (cheek-skimming kisses) – at least two, but in some parts of France it can be up to four – with casual acquaintances and friends.