How to write social media posts that sound like you, not AI

Scroll any professional feed for a minute and you will notice it: a lot of posts sound the same. Same dramatic opener, same three-item list, same tidy lesson at the end. Some were written with AI, some by people who have read so many of those posts that they now write that way too. Either way, readers have learned to skim past them.

The fix is not to stop using AI, and it is not to write everything from scratch at midnight. The fix is to know what your voice sounds like, clearly enough that you can spot when a draft drifts away from it, and pull it back. This guide gives you a method you can apply this week.

Why some posts read as machine-made

People rarely say “this was written by AI” because of one word. They react to a pattern. These are the most common ones:

• Stock openers. “In today's fast-paced world”, “Let's dive in”, “Here's the thing”, “I'm thrilled to announce”. They could start any post on any topic, which is exactly the problem.
• Even rhythm. Every sentence is roughly the same length and built the same way. Real people speed up, slow down, interrupt themselves, and sometimes write a four-word sentence.
• Lists of three, everywhere. “Clarity, consistency and courage.” One triplet is fine. A post made of them sounds like a template.
• Vague claims. “This changed everything.” “Game-changing results.” No number, no name of a tool, no moment in time. Nothing a reader could check or picture.
• Hedging stacks. “It's important to note that, in many cases, it can arguably be helpful to…” Each hedge is defensible; together they say nothing.
• The neat moral. Every post ends with a lesson wrapped in a bow and a question like “What do you think?” added out of habit.

None of these is forbidden. The issue is density. When a post is mostly made of them, there is no trace of a person left.

Build your voice sheet

A voice sheet is a one-page description of how you write. It sounds formal, but it takes about thirty minutes and it is the most useful writing asset you will make this year. Open three or four things you wrote that felt natural: an email you were proud of, a message to a colleague, an old post that people replied to. Then write down what you notice.

What to put on it

• Words you use. The expressions that come back in your messages. Maybe you say “honestly” a lot, or “the short version is”.
• Words you never use. Be specific. If you would never write “synergy”, “leverage” or “unlock”, list them. This is the fastest filter you have.
• Sentence length. Do you write short and direct, or long sentences with asides? Most people mix both; note your habit.
• How you open. Do you start with a scene, a blunt opinion, a question, a number? Look at your best messages.
• Opinions you hold. Three or four positions about your field that you would defend in a meeting. Opinions are what make a post sound like someone.
• Your audience. Who you are talking to, and what they already know. You don't explain the basics to peers.

Collect raw material, not topics

Generic posts often come from generic inputs. “Write a post about leadership” can only produce an average post about leadership. The material that makes a post yours is specific, and you already have plenty of it:

• A conversation from this week that changed how you think about something.
• A number from your own work: how long a task took, how many tries it needed, what you charged, what you stopped doing.
• A mistake you made and what you do differently now.
• A question a client, patient, student or colleague asked you that you hear often.
• Something everyone in your field repeats that you disagree with.

Keep these in one place as you go, in a few words each. When it is time to write, you start from a real moment instead of a blank page. That one change does more for your voice than any editing trick.

Use AI as a drafting partner, not a ghostwriter

AI is good at structure, speed and getting past the blank page. It is bad at knowing what happened to you on Tuesday. So divide the work accordingly:

1. You bring the substance. The story, the number, the opinion, in rough notes. Two or three lines is enough.
2. AI shapes a first draft. Give it your notes and your voice sheet, not just a topic.
3. You cut and correct. Remove anything you would not say out loud. Put back the details it smoothed away.
4. You decide the opening. The first line carries the post. Try a few versions and pick the one that sounds like you speaking.

If you struggle with first lines, the free hook generator gives you several openings to react to. Treat them as prompts: often the best opener is your rewrite of one of them.

A before and after

Here is the same idea written twice. The first version has every pattern listed above. The second starts from a real moment.

The second post is not fancier. It is more specific: a time, a reaction, a change, a result. It has uneven sentences. It has no moral in bold. And it sounds like a person who did something.

The editing checklist

Run every draft through these questions before it goes out, whether you or a tool wrote the first version:

• Would I say the first line out loud to a colleague without feeling silly?
• Is there at least one detail only I could know (a number, a moment, a name of a tool, a place)?
• Did I remove every word on my “never use” list?
• Do sentence lengths vary, or does it read like a metronome?
• Is there more than one list of three? Cut one.
• Does the ending add something, or just repeat the point? If it repeats, delete it.
• Is the question at the end a real question I want answers to? If not, drop it.

Formatting matters too. Short paragraphs and line breaks help on mobile, but bold text and emoji everywhere start to look like a template again. The text formatter lets you add bold or italic only where it earns its place, and the post preview shows where the “see more” cut falls, so you know what readers see before they tap.

Keep your voice consistent across networks

Your voice is not the same as your format. You can sound like yourself on LinkedIn in a longer, reflective post and on a short network in two sentences. What stays the same is your vocabulary, your opinions and the kind of detail you notice. What changes is length, structure and how formal you are.

If you manage several accounts, for example your own profile and a company page, write a short voice sheet for each. The company page can be a bit more neutral; your profile should not be. Our guide on repurposing one post for several networks goes further into adapting format without losing tone.

Make it a habit, not a performance

Voice gets stronger with repetition. The first posts after you write your voice sheet will feel stiff, because you are watching yourself. After a few weeks, the checklist becomes automatic and you will spot a stock opener before you finish typing it.

Specific beats polished. A real detail from your week will always sound more like you than a perfect sentence about nothing.

Start small: one post a week, built from one real moment, checked against your voice sheet. If you want a full routine around that, read our weekly LinkedIn routine for personal branding.