The 4 core tones to master

✂️ Direct tone
When to use it: with close colleagues, internal comms, quick exchanges, giving clear instructions.
Example

"Can you review this doc before noon? I need your feedback on section 3."

💼 Professional tone
When to use it: with clients, partners, people you don't know well, or in any formal context.

The professional tone adds a layer of politeness and structure. It builds trust and shows respect. When in doubt, default to this one.

Example

"I'm following up on our conversation from last week. Would you be available for a 20-minute call this week to discuss next steps?"

😊 Casual tone
When to use it: with colleagues you know well, internal Slack messages, informal check-ins.
Example

"Hey! Got 2 mins to look at my deck? Just want to make sure it holds up 😊"

🎯 Persuasive tone
When to use it: in sales emails, pitches, proposals, follow-ups, or when convincing a decision-maker.

Persuasive writing highlights benefits, anticipates objections and drives action. It must always stay honest and fact-based — manipulation is never a good long-term strategy.

Example

"Teams using Bernadette save an average of 3 hours per week on email rewrites. That's time back for the work that actually matters."

How to choose the right tone

The golden rule: adapt to your reader, not to yourself. Before writing, don't ask "how do I want to express this?" — ask "how does my reader expect to be addressed?"

SituationRecommended tone
First contact with a prospectProfessional + Persuasive
Sales follow-upProfessional + Persuasive
Email to a close colleagueDirect or Casual
Report or meeting summaryProfessional
Request to your managerProfessional + Direct
Commercial proposalProfessional + Persuasive
Internal Slack messageCasual or Direct

The most common tone mistakes

1. Being too formal with close colleagues

Writing "I hope this message finds you well" to a colleague you have coffee with every morning creates an artificial distance. It can even come across as cold or condescending. Don't be afraid to loosen the register with people you know well.

2. Being too casual with clients

Using "Hey!" or abbreviations in a client email — especially for a first contact — can raise doubts about your professionalism. Trust is also built through the register you use.

3. Shifting tone mid-conversation

If you started an exchange formally, stay in that register unless your contact shifts it first. A sudden change in tone can feel jarring or inconsistent.

✦ Bernadette tip

Not sure if your tone fits the situation? Paste your text into Bernadette — select "Professional", "Direct" or "Persuasive" and see the difference in one click.

The ideal tone doesn't exist — it adapts

With practice, adapting your tone becomes second nature. Until then, ask yourself two questions before every message:

These two questions are usually enough to eliminate the most common tone mistakes.

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