Meeting Etiquette
The handshake is a common form of greeting.
Friends may greet each other by lightly kissing on the cheeks, once on the left cheek and once on the right cheek.
First names are reserved for family and close friends. Wait until invited before using someone's first name.
You are expected to say 'bonjour' or 'bonsoir' (good morning and good evening) with the honorific title Monsieur or Madame when entering a shop and 'au revoir' (good-bye) when leaving.
If you live in an apartment building, it is polite to greet your neighbours with the same appellation.
Gift Giving Etiquette
Flowers should be given in odd numbers but not 13, which is considered unlucky.
Some older French retain old-style prohibitions against receiving certain flowers: White lilies or chrysanthemums as they are used at funerals; red carnations as they symbolize bad will; any white flowers as they are used at weddings.
Prohibitions about flowers are not generally followed by the young. When in doubt, it is always best to err on the side of conservatism.
If you give wine, make sure it is of the highest quality you can afford. The French appreciate their wines.
Gifts are usually opened when received.
Dining Etiquette
If you are invited to a French house for dinner:
Arrive on time. Under no circumstances should you arrive more than 10 minutes later than invited without telephoning to explain you have been detained.
The further south you go in the country, the more flexible time is.
If invited to a large dinner party, especially in Paris, send flowers the morning of the occasion so that they may be displayed that evening.
Dress well. The French are fashion conscious and their version of casual is not as relaxed as in many western countries.
Table manners
Table manners are Continental -- the fork is held in the left hand and the knife in the right while eating.
If there is a seating plan, you may be directed to a particular seat.
Do not begin eating until the hostess says 'bon appetit'.
If you have not finished eating, cross your knife and fork on your plate with the fork over the knife.
Do not rest your elbows on the table, although your hands should be visible and not in your lap.
Finish everything on your plate.
Do not cut salad with a knife and fork. Fold the lettuce on to your fork.
Peel and slice fruit before eating it.
Leave your wine glass nearly full if you do not want more.