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How to Write Social Media Posts People Actually Read

By PostMediaAI6 min read

To write a social media post people read, start with one clear point, open with a first line that makes that point specific, keep the body short and useful, end with one next step and shape the length and tone for the platform. Most weak posts fail at the first step: they try to say several things at once.

This guide breaks the process into steps, with examples, a reusable structure and a checklist. It works whether you write every word yourself or start from an AI draft.

Step 1: Decide the one point

Before writing, finish this sentence: "After reading this, I want people to know or do ___." If you cannot finish it in one line, the post is not ready.

  • Good: "Our Saturday market stall moves to the north entrance from next week."
  • Too broad: "Updates about our business and some tips and a promotion."

One point per post makes everything else easier: the hook, the length and the call to action.

Step 2: Write the first line

The first line decides whether anyone reads the rest. On most platforms only the opening shows before people tap "more", so it needs to work on its own.

Hook patterns that work

  • The specific result: "We cut our packing time in half by changing one thing."
  • The problem: "Most first-time sellers price their home too high."
  • The surprise: "Our best-selling loaf started as a mistake."
  • The question your audience asks: "Can you freeze sourdough? Yes, and here is how."
  • The direct announcement: "New opening hours from Monday."

Avoid openers that could start any post, such as "Exciting news!" or "Did you know?" without a specific follow-up.

Step 3: Write the body

Keep the middle short and concrete:

  1. Give the useful part: the steps, the story, the details or the reason.
  2. Use short paragraphs or line breaks; feeds are read on phones.
  3. Replace general words with specifics: names, numbers you can verify, places and times.
  4. Cut anything that does not support the one point.

Step 4: End with one next step

Pick one action, or none:

  • Reply: ask a real question people can answer easily.
  • Click: one link with a reason to click.
  • Save or share: for checklists and tips.
  • Visit or book: with the date, place or link.

Stacking several asks, such as "like, comment, share and follow", weakens all of them.

Step 5: Fit the platform

The same idea needs different shapes on different networks. Length limits are fixed by each platform; for example, LinkedIn posts can be up to 3,000 characters (LinkedIn Help), Instagram captions up to 2,200 characters (Meta developer docs) and standard X posts 280 characters (X Help).

  • LinkedIn: a little context, one practical takeaway, professional but human.
  • Instagram: the caption supports the visual; the first line matters most.
  • X, Threads and Bluesky: short and direct, one idea.
  • Facebook Page: friendly, with room for a little detail.
  • TikTok and YouTube Shorts: the spoken or on-screen hook matters more than the caption.

For a full list of limits, see our guide to social media character limits.

Before and after: three examples

An announcement

Before: "Exciting news!! We have some big changes coming to our store so stay tuned and follow us for updates!!"

After: "From 4 November we open at 8 am instead of 9 am, Monday to Friday. Coffee will be ready when the doors open."

A tip

Before: "Here are some tips for better sleep that can really help you feel your best."

After: "If you wake up at 3 am, do not check your phone. Keep a notebook by the bed and write down whatever woke you. It helps more than you would think."

A business update on LinkedIn

Before: "We are thrilled to announce that we are expanding our offering to better serve our valued clients."

After: "We now do payroll as well as bookkeeping. Three clients asked for it this year, so we hired someone who has done it for ten years."

In each case the second version has one point, specific details and words a person would say.

A reusable post structure

  • Line 1: the hook, specific and self-contained.
  • Lines 2 to 4: the useful part, in short lines.
  • Last line: one next step or a question.
  • Optional: one to three relevant hashtags where the platform uses them.

Writing faster with AI, without sounding like AI

AI drafts can save time, especially when you post across several platforms. Use the same steps: give the AI your one point, the platform and the facts, ask for several hook options, then edit using the checklist below. Our guides to AI social media content creation and the AI social media post generator go deeper.

The pre-posting checklist

  1. Is there one clear point?
  2. Does the first line work on its own?
  3. Are all names, dates, prices and claims correct?
  4. Is every line necessary?
  5. Is there one next step, or deliberately none?
  6. Does the length fit the platform?
  7. Does the image or video match the words?
  8. Does it sound like you when read aloud?

Writing and scheduling in PostMediaAI

In PostMediaAI, you can write posts yourself or give the AI a topic or link to draft a version for each channel you choose, then edit each one and schedule it on one calendar that publishes across 30+ channels (PostMediaAI features).

FAQ

How do you write a good social media post for business?

Pick one point, write a specific first line, keep the body short and concrete, end with one call to action and adapt the length and tone for the platform. Check facts before posting.

How long should a social media post be?

As long as it needs to be and no longer, within the platform’s limit. Short posts suit X, Threads and Bluesky; LinkedIn and Facebook allow more context; Instagram captions should put the key line first.

How do I make my social media posts more engaging?

Use a specific hook, share something genuinely useful or interesting, ask real questions people can answer easily and reply to comments after you post.

Can I use AI to write social media posts?

Yes. AI can draft posts quickly if you give it the point, platform and facts. Edit every draft for accuracy and voice before it goes out.

Related guides: AI Image Generator for Social Media: How to Use One Well, ChatGPT Prompts for Social Media: 30 Templates to Edit and AI Video Generator for Social Media: Short Videos Guide.

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