On se tutoie ? The tu/vous switch at work

When I worked in logistics near Nantes, I used to change register three times before lunch. At 7h30 on the loading dock, everyone was tu, including the driver I had met that morning. At 10h in the meeting room with the site director, everyone was vous, including the same driver if he happened to be there. At 11h30 in the corridor, the director and I passed the head of the warehouse, who called him tu because they had started on the same day in 1994. Nobody found any of this complicated. Nobody could have explained it either.

That is the problem with tutoyer (to address someone as tu) and vouvoyer (to address them as vous) at work. It is not a grammar point. It is a social protocol that French people run without thinking, and that you have to run consciously for about two years before it goes quiet.

The default is vous. But the default is not the same everywhere.

Start here: with a French colleague you have just met, vous is never wrong. It can be slightly stiff. Stiff is a much smaller error than familiar. And in a job interview, un entretien d’embauche, you use vous even at a company where everyone tutoies, unless the interviewer tutoies you first.

After that, sector does most of the work.

The practical instruction: for your first week, say vous to everyone and listen. Specifically, listen to what people call the person one level above you. That tells you more than any handbook.

Who is allowed to propose it

The switch is a gift. It is given downwards and outwards, not requested upwards.

In practice, the person who proposes tu is the senior one, or, at equal rank, the older one. A team leader can offer it to a new recruit on day one. A new recruit offering it to the team leader on day one sounds like someone helping themselves to something that was not on the table. It is not a catastrophe, but it registers, and it registers in a way you will not be told about.

So: almost never initiate upward. Wait. If your manager wants tu, you will hear Tu peux me tutoyer (“you can use tu with me”) within a few weeks, and if you do not hear it, that is information too. The relationship works perfectly well at vous.

One useful exception. If you are new and clearly younger and a colleague of your own rank has been tutoying you for two weeks while you doggedly hold at vous, you may level it: On se tutoie, alors ? (“Shall we both use tu, then?”). You are not asking for a promotion. You are just tidying up.

The actual phrases

These are short. The whole exchange takes four seconds and then it is over forever.

Proposing

• On se tutoie ? The standard. Light, friendly, slightly informal in itself.
• On peut se tutoyer, si vous voulez. (“We can use tu, if you like.”) A touch more careful. Note the vous still in the sentence: correct, and rather elegant, because you have not switched yet.
• Vous pouvez me tutoyer. One-directional, and typically what a senior person says. It does not automatically mean they will tutoyer you back.
• Est-ce qu’on peut se tutoyer ? The most neutral of the four. Safe in any office.

Accepting

• Avec plaisir. (“Gladly.”) Warm, two words, done.
• Volontiers. Same idea, slightly more polished.
• Oui, bien sûr, avec plaisir. Je vais essayer, mais je risque de me tromper au début. (“I’ll try, but I’ll probably get it wrong at first.”) Buys you three months of amnesty. Use it.

Deflecting

You are allowed to decline. Rarely necessary, but it exists, and the trick is to make it about your habits rather than about them.

C’est gentil, mais je préfère rester au vous, si ça ne vous dérange pas. C’est une habitude.
(“That’s kind, but I’d rather stay with vous, if you don’t mind. It’s a habit of mine.”)

Said with a smile, this costs nothing. What you must not do is accept and then keep saying vous without explanation, which reads as a small, cold correction.

The awkward middle period

Two versions of this, and they are different problems.

Version one: permanent asymmetry. Your manager says tu to you, you say vous to her. This is not a transition. In plenty of French workplaces it is the stable, final state, and it can last a decade. Do not fight it, do not point it out, do not escalate to match. It is not rudeness; it is the shape of the hierarchy said out loud.

Version two: the wobble. You agreed to tu on Tuesday and by Thursday half your sentences are still coming out in vous. Completely normal, and nobody is counting. Three survival tools:

1. Hide behind on. On se voit à 14h ? (“Shall we meet at 2?”) On en parle demain ? No pronoun choice required. French people do this constantly, for exactly this reason.
2. Go pronoun-free. Petite question sur le dossier Martin. Serait-il possible d’avoir le fichier avant vendredi ? Merci d’avance. Three useful sentences, zero tu, zero vous.
3. Repair silently. If you slip, do not apologise. Just say the sentence again in the right register and keep going. Apologising is what makes it a moment.

The real work is mechanical, and it is worth ten minutes of drilling, because tu is not one change but six.

The one that catches everybody is s’il vous plaît. It is welded on. You will be three weeks into tu and it will still fall out of your mouth.

Last thing on this: going back. Once you are at tu, returning to vous with the same person is a statement. It reads as cold, or angry, or as a formal warning. So the switch is, in practice, one-way.

Writing lags behind speaking

This is the part almost nobody warns you about. Teams, Slack and email stay at vous longer than the corridor does, and email longest of all. You can be perfectly tu with someone over coffee and receive a mail from them that opens Bonjour Madame Bernard and closes Cordialement, because the mail is going to be forwarded to four other people and the register is being set for the audience, not for you.

Three habits will keep you out of trouble.

• Let the sign-off carry the register. Cordialement and Bien cordialement are neutral-to-formal. Bonne journée is warm and works either way. Bien à toi and À bientôt are for people you tutoie. Match the sign-off to the pronoun you used and the mail is coherent.
• In group threads, use vous and stop worrying. This is French’s quiet gift to you: vous is also the plural. Write to five people, three of whom you tutoie, and vous is simply correct. Nobody reads it as distance.
• Mirror, one step behind. If a colleague writes to you at tu, you may answer at tu. If they write vous in writing while tutoying you in the kitchen, follow the channel, not the person. They are doing it deliberately.

Slack and Teams sit between the two: quicker to arrive at tu than email, slower than speech. And the informality of the tool does not authorise anything by itself. A message in Teams to the CFO is still a message to the CFO.

Quebec, and the firms that tutoient by policy

If your colleagues are in Montreal, recalibrate. Quebec is markedly more tu: with colleagues, with shop assistants, with people you have known for four minutes. The local phrasing is often On se dit tu ? rather than On se tutoie ?. Vous still exists there for older people, for officials, for genuinely formal settings, but deployed the French way it can land as chilly rather than polite. Which is exactly the mirror image of the mistake French speakers make in Quebec.

Inside France, some companies have simply legislated the problem away. Generalised tutoiement is house policy at a number of retailers and at most tech firms; Decathlon is the classic French example, and IKEA France runs the Swedish convention. In those places tu goes all the way to the top from day one, and using vous with your manager marks you as the person who did not read the culture. Ask on your first morning: Ici, on se tutoie ? It is a perfectly normal question and it will be answered in three words.

The one error to actually avoid

Do not tutoyer a client. Not a new one, not a friendly one, not one your colleagues tutoient, not after a good lunch. External relationships stay at vous far longer than internal ones, and the asymmetry is real: a client may tutoyer you while you continue with vous, and that is the normal state of affairs, not an insult. If the relationship genuinely warms over years, the client proposes. You do not.

A useful halfway house exists and is very common in France: vous plus the first name. Vous avez eu le devis, Claire ? Warm and correct at once. What does not exist is the reverse: tu with Monsieur or Madame is not a register, it is a mistake.

And if you slip? Almost nothing happens. Really. Say Pardon once, in a light voice, re-say the sentence with vous, and move on. The thing that turns a half-second slip into an incident is the learner who stops, apologises twice, explains that in their language there is no distinction, and makes everyone at the table watch them be embarrassed. One pardon. Then the next sentence. French clients have heard worse this week from French suppliers.

The rule underneath all of it, if you want one sentence to carry away: start at vous, follow the room, never propose upward, and let the other person hand you tu. It arrives sooner than you think, and when it does, it means something.

If your French works fine in a café and goes stiff the moment you are in a meeting, that is a register problem, not a vocabulary one. I run a 12-lesson Professional French Foundations course at B1 level, one to one, built around the situations that actually cost you credibility: introductions, meetings, email, phone calls, and the register decisions inside all of them. We rehearse the four-second exchanges until they stop being decisions. On en parle ?