France: Keep your voice down in public and never jump the queue
Do
Queue patiently and leave a little space in front of you
Speak quietly on public transport and in museums and libraries
Let passengers off first and don't block doors or aisles
Keep to the right on pavements and escalators
Offer your seat to older people, pregnant women and people with disabilities
Say Bonjour to staff when you enter a bakery or shop
Don’t
Don't cut in or push
Don't take calls or play music on speaker
At markets, don't pick produce yourself; let the vendor choose for you
Cutting in or being loud won't get you fined, but it is considered rude. Some guides note that queues at stations or markets can be looser; still wait your turn and don't push.
France: Say Bonjour when you enter a shop; friends greet with la bise
Do
Say Bonjour when you enter a shop and Au revoir when you leave
Friends and acquaintances greet with la bise, a light touch of cheeks
The number of kisses varies by region; follow the other person's lead or go with two
In formal business settings and first meetings, use a brief, firm handshake
Use vous with new acquaintances, elders and service staff; switch to tu only when invited
Don’t
Don't start asking a shop assistant questions without greeting them
Don't initiate la bise in business settings or at a first meeting
Don't hug strangers
Nobody will penalise you, but skipping the greeting in a shop is seen as rude, and getting la bise wrong shows you don't know local ways. Two kisses are usual in Paris and the north, three in parts of the south, and customs vary elsewhere.
Never go down onto the flats alone: the incoming tide can move several times faster than walking pace, and the quicksand and fog have killed — a safety taboo locals stress again and again
do not feed the island's many gulls, which will dive to snatch food
do not use flash, talk loudly on the phone or eat and drink in the abbey cloisters and church
Never walk across the circular traffic of the square — the many radiating streams of traffic have no pedestrian crossings and it is extremely dangerous
do not climb the stone railings at the base of the arch or carve or scribble on the reliefs
do not sit or lie on the tomb steps, eat there or take loud selfies