Most messages fail for entirely fixable reasons. They are too long, so nobody reads to the end. Or too short, so they feel dashed off. The tone is wrong for the relationship — stiff with a best friend, over-familiar with a new boss. The opening fizzles, the middle rambles, and the ending just… stops.
None of this is about talent. Writing a good message is a craft, and like any craft it has principles you can learn. This guide breaks a message down into its working parts — length, tone, openings, structure and closings — so that whatever the occasion, you can build something that lands.
Length: how long is right?
The right length is decided by the medium and the moment, not by how much you have to say. A good rule of thumb: say it in the fewest words that still feel generous. Brevity reads as confidence; padding reads as anxiety.
For a text or WhatsApp message: two to four sentences is the sweet spot. Enough for one genuine thought, short enough to read at a glance. Anything longer starts to feel like it should have been a call — or at least a card.
Just heard your news — I’m absolutely thrilled for you! You worked so hard for this and you deserve every bit of it. Drinks soon to celebrate properly? x
For a greetings card: roughly 40 to 80 words — four to eight sentences. That fills a card nicely without cramming. Remember the card itself does half the work; your words are the personal layer on top of a design someone chose.
For a letter or long email: you have room for stories, but structure matters more as length grows. Aim for three short paragraphs: the personal connection, the heart of the message, the warm close. If you are writing more than a page, ask yourself whether every paragraph earns its place.
For a speech or toast: shorter than you think. Two minutes of speaking is about 250 words, and that is plenty. Guests remember one vivid story and one sincere line; they do not remember your third anecdote.
The universal test: read it back and cut any sentence the message would survive without. What remains is your message.
Tone matching: reading the room
Tone is the emotional register of your message — warm, formal, playful, solemn — and getting it right matters more than getting the words perfect. The principle is simple: match the tone to the relationship and the occasion, then add a touch of yourself.
Consider the same news — a friend’s promotion — written three ways:
Too formal: Dear Jennifer, Please accept my sincere congratulations on your recent professional advancement. I trust the new role will prove rewarding. Kind regards, Tom
Too flippant: lol nice one, about time they noticed. drinks on you now i guess
Just right: Jen! I just heard — congratulations! So well deserved after everything you put into that project. I’m really chuffed for you. Celebratory dinner soon? x
The first reads like HR; the second like you do not care. The third matches a genuine friendship: enthusiastic, specific, warm.
A practical way to calibrate: imagine saying the words out loud to the person. If you would feel ridiculous saying “please accept my sincere congratulations” to your best mate over coffee, do not write it. Conversely, if you would not call your new manager “mate” to their face, do not do it in writing either.
Watch for these common tone mismatches:
- Grief and solemn occasions demand sincerity without stiffness. “I was so sorry to hear your news” is perfect; flowery poetry from an acquaintance can feel performative.
- Professional messages should be warm but bounded. Friendly, not familiar: “It was a pleasure working with you” rather than “you’re the best!!”
- Humour is wonderful between people who share it, risky with strangers. When writing to someone you do not know well, keep jokes gentle and self-deprecating rather than teasing.
Openings that work
The first line decides whether the rest gets read with interest or out of duty. Weak openings announce the message instead of delivering it — “I am writing to wish you…” tells the reader what you are about to do rather than doing it. Strong openings drop straight into the human moment.
Openings that land:
- “I’ve been thinking about you all week, so I wanted to write…”
- “I just heard your news and I had to put pen to paper straight away.”
- “It was so lovely to see you on Saturday — I’ve been smiling about it since.”
- “I don’t say this often enough, but…”
- “Congratulations — what brilliant news to wake up to!”
Openings to retire:
- “I am writing to…” (just say the thing)
- “Hope you are well” as a standalone opener — it is fine as a pleasantry, but follow it immediately with something real
- “Sorry it’s taken me so long to write” — one light line of this is fine; a paragraph of apology makes the message about your guilt
Notice the pattern: good openings are specific, immediate and human. They sound like the start of a conversation, not the start of a document.
Structure: the three-beat message
Almost every good message, from a two-line text to a wedding speech, follows the same hidden structure. Think of it as three beats:
Beat 1 — Acknowledge. Name the occasion or the moment. This orients the reader instantly: “On your retirement…”, “Hearing about your diagnosis…”, “Twenty-five years!”
Beat 2 — Personalise. This is the beat most people skip, and it is the entire difference between a message that is kept and one that is skimmed. One specific memory, one observed quality, one detail that proves this message could only be for them.
Beat 3 — Look forward or wish well. End with warmth directed at their future: a hope, an invitation, a simple “I’m so glad to know you.”
Watch it working in a short message:
(Acknowledge) Happy 40th, Dave! (Personalise) Twenty years of friendship and I still laugh thinking about your disastrous attempt at a surprise party for me in 2011 — the surprise was that you told me a week early. (Wish) Here’s to the next twenty. Have the best day.
Three beats, three sentences, one message nobody throws away.
Closings that land
The closing line is the taste left in the mouth — it should feel like a warm hand on the shoulder, not a door clicking shut. Match the closing to everything that came before: a heartfelt message should not end with a breezy “cheers!”, and a light note should not suddenly turn solemn.
Closings that work across most occasions:
- “So glad to know you.”
- “Here’s to you — today and always.”
- “Wishing you every happiness.”
- “With all my love, always.”
- “Thank you for being you.”
(For an exhaustive collection of closing lines organised by occasion — birthdays, sympathy, weddings, Christmas and more — see our companion guide, How to Sign Off a Card: 50 Closing Lines for Every Occasion.)
Adapting one message for card, text and speech
Here is where the craft really pays off: one heartfelt thought, shaped three ways. Suppose your friend Maya has just had a baby girl. The core message — your three beats — stays constant; only the packaging changes.
As a text (immediate, brief):
Maya!! She’s here! Congratulations, I’m so happy for you all. She is gorgeous. Rest up and enjoy every minute — can’t wait to meet her. Lots of love x
As a card (considered, keepsake):
Dear Maya and Jon,
Congratulations on the arrival of little Ava! After all the anticipation, she’s finally here, and I couldn’t be happier for you both. You two are going to be wonderful parents — patient, funny, and completely devoted, if the way you talk about her already is anything to go by.
Enjoy this precious bubble. Lots of love to all three of you.
As a toast (spoken, at a gathering):
I’d like to raise a glass to Maya and Jon — and to Ava, who at three weeks old has already wrapped this entire room around her tiny finger. Maya, I’ve watched you talk about becoming a mum for years, and seeing you now… it’s everything I hoped for you. To the new family!
Same heart, three shapes. Learn to do this and you will never again be stuck for words — only choosing which version the moment deserves.
Frequently asked questions
What is the single biggest mistake people make in messages?
Being generic. “Thinking of you at this difficult time” is not wrong, but “I’ve been thinking about your mum’s laugh all week” is unforgettable. Specificity is the cheapest, most powerful upgrade available to any writer.
How do I write to someone I don’t know well?
Keep it shorter, warmer than formal, and anchored in the one thing you do know — the occasion. “I was so sorry to hear about your father. He spoke of you often, and with great pride” works from a colleague you barely know because it is sincere, bounded and specific.
Should messages rhyme or be poetic?
Only if that is genuinely how you write. Forced verse is worse than plain prose — it draws attention to the writing instead of the feeling. A plain sentence that is true will always beat a rhyming couplet that is strained.
How do I end a message without it trailing off?
Decide your final sentence before you write the rest. A message should land, not evaporate: end on the wish, the thanks, or the love — “I’m so glad you’re in my life” — and then stop. Resist the urge to add “anyway…” after your ending. The ending is the ending.