AI script writer for Reels: make the first three seconds hard to swipe past

You have the clip open, the light is good, and the edit is nearly done. Then you replay the opening and hear yourself spend the first two seconds saying, "So today I want to talk about..." It is a polite start. It also gives a thumb every reason to keep moving.

For a creator making short videos, the opening job is smaller and tougher than "be interesting." In the first three seconds, a viewer needs to recognize a problem, feel a little tension, or want the answer badly enough to wait. The rest of the video cannot rescue an opening that asks for patience before it earns any.

This is where an AI script writer for Reels can help, provided you use it for options and judgment rather than as a machine that writes your whole personality. Hook Lab is built for that narrow job: give it a topic, audience, and tone; get several opening angles you can say out loud, plus on-screen text and a way to continue the video.

Start with the moment your viewer is already having

Broad topics produce broad hooks. "Gym motivation" is broad. "People who quit the gym after an overambitious first week" gives you something a beginner can recognize in a second.

Before you ask for hooks, pin down four things:

• The exact viewer: a beginner, an exhausted parent, a freelance editor, not "everyone."
• The frustrating moment: they skip day five, freeze at a blank script, or keep posting clips that die early.
• The promise: an explanation, a fix, a useful reframe, or a specific next move.
• The delivery: calm, blunt, playful, fast, or conversational.

That detail prevents a familiar failure: a dramatic-sounding opener that could introduce any video. "You need to hear this" has no stakes until the viewer knows what "this" is. "Stop going to the gym every day" does. It is specific enough to disagree with.

Write for the ear and the screen at the same time

A Reel has two openings running in parallel. One is spoken. The other is the line a viewer reads while deciding whether to stay. They should reinforce each other without duplicating every word.

Say the surprising claim out loud. Put the concrete problem on screen. For example, a spoken line such as "You're not lazy. You're doing week one wrong" can sit over "Week 1 mistake." The spoken sentence carries the reframe; the text helps a muted viewer catch the subject.

Read every candidate aloud once. If you would not say it to a friend on camera, it will sound borrowed in the first take. Trim the setup. Prefer a sentence that lands before you have to take a breath.

Build a hook that can pay off

The hook has to make a promise the next 27 seconds can keep. A useful short structure is simple: make the claim, name why the common approach fails, give the fix, then tell the viewer what to do next.

For the gym example, the claim is that daily attendance can be the wrong target for a beginner. The middle explains the trap: a punishing first week turns a new habit into a recovery problem. The fix might be three manageable visits with a plan for the days between. Now the opening did more than provoke. It pointed toward the video.

This check catches clickbait before you record it. Ask one question: can the body of this video answer the sentence I opened with? If the answer is no, change the hook or make a different video.

Generate variety, then choose the one that fits

Do not ask for "a viral hook" and take the first line. Ask for different angles. A contrarian opener can interrupt a familiar belief. A question can name a worry the viewer already has. A mistake opener can offer relief by shifting blame from the person to the approach.

Then choose with context. A loud contrarian line may suit an account that already teaches with blunt opinions. A beginner audience often responds better to a line that reduces shame and gives a clear path forward. The best hook is the one you can support in the video you are making today, in a voice that belongs on your account.

Keep the other options. They are raw material for a second cut, a different platform, or the next time the same topic returns. One topic can carry several honest openings; it does not need one magical sentence.

Give the tool a useful brief

The quality of the brief changes the quality of the choices. Include the runtime, subject, audience, tone, and what you want the viewer to do or understand. You can also name constraints such as "no fearmongering," "keep it beginner-friendly," or "I will film this while walking to the gym."

After you get suggestions, do a small reality check. Is the claim true enough to defend? Does the on-screen line fit without shrinking to unreadable text? Can you demonstrate the promised fix with the footage you have? That takes less time than recording an intro that feels wrong and trying to repair it in the edit.

What the tool returns

Here is a real published example of the input and shortened output:

You send: "Hooks for a 30s TikTok about why most people quit the gym in January — energetic, for beginners."

You get back (shortened):

• Positioning: "The gym isn't the problem — your first week is." You own the beginner-who-keeps-quitting angle.
• Hooks (5+, each with spoken line + on-screen text + type):

1. Contrarian — 🗣 "Stop going to the gym every day." / 🖥 "Day 1 is where you quit" 2. Question — 🗣 "Why does everyone quit by January 20th?" / 🖥 "The January 20th wall" 3. Mistake — 🗣 "You're not lazy. You're doing week one wrong." / 🖥 "Week 1 mistake"

• Recommended pick: #3, with one line on why it fits a beginner audience.
• Script: 0–3s hook · 3–10s the mistake · 10–22s the fix in 3 steps · 22–30s CTA.
• Caption: short caption + CTA + hashtags, plus one filming tip.

Try Hook Lab for your next short video