Glossary
Hook
Also called: Video hook, Opening hook
Definition
A hook is the opening line or moment of a video, usually its first one to three seconds, designed to make the viewer curious enough to keep watching.
What “hook” means
A hook opens a question in the viewer’s mind. It can be a paradox (“Your GPS never talks to satellites”), a consequence (“This setting is why your phone dies by 3 p.m.”), a specific number, a common mistake or a bold claim that the video then backs up. In a short vertical video, the hook is usually both spoken and shown on screen, so it works with and without sound.
A hook is a promise. The rest of the video has to deliver what it implied; otherwise viewers feel tricked, and the comments tend to say so. That is the line between a good hook and clickbait.
Why it matters for short explainer videos
On TikTok, Reels and Shorts, the next video is one swipe away. The first seconds decide whether someone stays long enough to hear the explanation at all. Openings like “Hi, today we’re going to talk about…” spend those seconds on nothing.
For explainers specifically, a good hook frames the question the video answers. That structure helps viewers follow along, because they know what they are waiting for.
Example
Weak hook: “Let’s talk about compound interest.” Stronger hook: “Put 100 dollars away at 25, and it can be worth several times that by retirement without adding a cent.” The second version is concrete, raises a “how?” question, and the video can show the answer year by year. (Keep any number in the hook honest and checkable.)
In Motiongist
How Motiongist handles it
When Motiongist writes the script from an idea, a link or a document, it opens with a hook and builds the rest of the video to pay it off. When you provide your own script, it keeps your opening. Either way, you can rewrite the first scene in the storyboard review before rendering.
The hook is animated like any other line, timed to the voice and shown in large type, but Motiongist can’t guarantee performance: no tool can. The hook guide has formulas you can adapt.