How to write a Reel hook for the first 3 seconds

Most Reels die in the first three seconds. The hook is the first thing you say on camera — not the caption under the post, not the cover, not a payoff at second twelve. If that line sounds like a meeting intro, the thumb is already gone.

ClipoStack treats the hook as the start of the edit. Before you record, score the spoken opening on the free Reel hook checker: paste the first lines, get a 0–100, and see what to fix. This page is the writing method. The checker is the test.

A useful hook is specific, speakable, and unfinished. It names a stake a stranger can feel. It does not summarize the whole video. It earns the next sentence.

What a Reel hook is (and what it is not)

A Reel hook is the spoken open: one to three sentences meant to land in about three seconds. Captions help with sound off, but the hook still has to work as speech. “Hey, so today I wanted to share” buys recognition and spends it on a skip. Write the sentence you would say if a stranger was already leaving.

Six steps to write the opening

1. Write the first sentence you would say on camera — skip the outline. Say the line out loud, then type it. If you cannot say it in one breath, it is not a hook yet. A paragraph is a script; the first 3 seconds cannot hold a paragraph.
2. Cut the filler open — delete so, um, okay, today I want to talk, and let’s discuss. Filler tells the viewer this is a preamble. Reels do not have preambles. Start on the fact, the number, the mistake, or the question.
3. Put a specific stake in sentence one — a number, a name, a time, or a cost. “I wasted years on the wrong offer” is weaker than “I spent $12,000 on an offer nobody bought.” Do not invent numbers you cannot stand behind on camera.
4. Leave an open loop — sentence one should create a question the rest of the Reel answers. A closed line (“Consistency is important”) gives no reason to stay. Open loops are unfinished business, not a secret you never reveal.
5. Fit the line to spoken time — about 8–14 words is the pocket for a 3-second read. Direct address and short clauses sound spoken; slide copy does not. Read it at the pace you would talk on camera. If you run out of breath, cut words, not speed.
6. Score the paste before you record — put the opening into the free Reel hook checker. It scores the words only — not your face, captions, or B-roll. You get a 0–100 plus notes on pattern interrupt, specificity, open loop, stakes, and spoken fit. Fix the line, then record.

Five things a strong hook does

The checker uses the same five tests you should write toward: a pattern interrupt that does not sound like every other talking-head; specificity (digits, names, timeboxes); an open loop so sentence one is unfinished; stakes — what was lost or about to change; and spoken fit — words you can actually say in three seconds.

Openings that get skipped

Channel intros, “welcome back,” and “in this video I will explain” waste the only window you have. Generic promises with no proof in the sentence do the same. Stacking three questions is a survey, not an open loop. If the first line could sit under any video on your account, it is branding, not a hook.

Check the hook, then record

Write the opening, then score it here: Hook checker. Rewrite the weak parts, then record that speech and drop the take in ClipoStack. Captions and B-roll come after the line is worth keeping. This tool does not score delivery or the final MP4.

Tips that survive a real take

• Write for a stranger, not for your regulars. Followers already know you. The Reels feed does not. Assume zero context in sentence one.
• One job per opening. Either the stake, the interrupt, or the question leads. Trying to hit every test in eight words makes mush. Lead with one, imply the rest.
• Record after the line is tight. A weak hook with perfect B-roll is still a skip. Get the spoken open right, then use the studio for captions and cutaways.

Common questions

Related: Hook checker to score an opening, or How it works for upload through export.