On TikTok, most people decide whether to keep watching in the first two or three seconds. If they swipe, the rest of your ad might as well not exist: the demo, the offer and the call to action all go unseen. That is why the hook is the single most important line you will write for a TikTok ad.
Below is how we think about hooks at UGCABC, including the three we tested on our own ads and what we learned from them.
What the first three seconds need to do
People scroll fast. Your opening has to give them a reason to stay right now, not in ten seconds. In practice that means:
- No logo intro. A branded opener instantly says “this is an ad”.
- No warm-up like “Hey guys, today I want to talk about…”
- A face already talking, or something visually unexpected in the very first frame.
- A first line that is a claim, a question with real stakes, or a direct call-out to the viewer.
Six hook types that keep working
- Problem call-out: “POV: your skin keeps breaking out no matter what you do.”
- Objection buster: “I thought this was a scam. Then I actually tried it.”
- Result first: “Three days on this and my nails stopped peeling.”
- Curiosity gap: “Nobody talks about this, but every dentist I know uses it.”
- Comparison: “I switched from the big brand and here’s what changed.”
- Native format: POV, GRWM or storytime openers that look like normal TikTok content.
Match the type to the audience. People who have never heard of you respond to problem call-outs and result-first hooks. People who already know you respond to objection busters and comparisons.
The three hooks we tested, and why
For our own TikTok ads we used one AI avatar, Margo, holding a skincare bottle, and changed only the first line:
I’m not real.
Your ad is already getting old.
How much did this UGC shoot cost?
Together they brought 391 clicks from 52,683 impressions at 4 to 9 cents per click. The hooks did what hooks should do. Our real problem turned out to be after the click, inside TikTok’s in-app browser, which we wrote about on Medium: 52,000 views later, here’s what broke.
Openings that kill your hook rate
- Brand animations. Every second of logo reads as an ad.
- Announcer voice: “Introducing the all-new…” feels like TV in the wrong app.
- Weak questions: “Ever wondered how to…?” signals a long monologue is coming.
- Too much polish. If it could open a 2010 YouTube pre-roll, it is too slick for the feed.
How to test hooks without burning budget
Keep everything the same except the first two or three seconds: same product, same avatar, same script. Launch four to eight versions together so they compete in the same conditions. After a couple of days, switch off the clear losers and move budget to the winners. Because only the hook changed, you know the hook is what made the difference.
This is where AI saves the most money. With a real creator, every new hook means another shoot. In UGCABC, a new version of the same Product Ad with a different first line takes minutes and costs from 6 credits. Our UGC ad cost breakdown shows what a month of testing costs both ways.
When to kill a hook and when to keep iterating
- Strong start, fast decline: the angle works but the ad is tired. Make new versions of the same idea.
- Never took off: the angle is wrong for this audience. Don’t rewrite the words, change the approach.
- Good hook, no sales: look past the ad. Check the landing page and the sign-up or checkout flow on a real phone.
Try your hooks on your own product
Write three first lines, put them on the same video and see which one people stop for. Make a Product Ad in UGCABC: previews are free, and new accounts get 50% off the first pack. For the full process from angle to export, see How to Make UGC Ads with AI.
