The human reaction library

Your next video starts with a real reaction.

Find the expression. Add your product demo and a line that makes it yours.

Explore the library Compressed previews · One-time access to originals

Testing & iteration

Make three openings from one product demo

Finish one clear product section. Then give it three different ways to begin.

On this page
The useful bit

This is a production worksheet. It creates comparable creative versions, not three guaranteed winners.

Lock the part that explains the product

Choose a recording that shows one complete action and its result. Save a clean version of that section with its caption and sound decisions. Duplicate the project before adding new openings.

Write down the offer and closing instruction as well. If those change between versions, you will not be comparing only the opening. Keep the destination consistent when evaluating the edits under similar conditions.

Create three genuinely different entries

Use a question, a result-first shot and a reaction-led opening. These are different structures rather than three nearly identical captions. They can all lead into the same product action if that action has a clear payoff.

VersionFirst shotSuggested lineConnection to the demo
A: questionA curious reaction“Where did I save that?”The demo performs the search
B: result firstThe correct saved item already open“Here is the note”The demo shows how it was found
C: small shortcutA restrained surprised expression“There is a shorter way”The demo shows the supported path

Make the handoff feel deliberate

Each opening may need a different in-point even if the demo stays the same. Leave a clear beat for the question, then bring in the product action. Do not force a long expression into a short slot by making the motion unnatural.

For the result-first version, avoid repeating the entire result so many times that the middle feels redundant. Show enough to create context, then use the demonstration to explain the process. If that changes the total length, note it as part of the treatment.

Keep a version sheet with the exports

Record the exact source, line and timing. A teammate should be able to reproduce the version without searching old messages. Keep a baseline export so you can inspect accidental changes in crop, audio or text.

FieldWhat to record
Version IDA question / B result / C reaction
SourceReaction filename or product source
Opening durationActual time before the fixed demo
TextExact line and where it ends
Changed variablesEverything different from the baseline
ReviewPhone-size check and any issues

Know what this comparison can tell you

If the expression, line and structure all differ, you are comparing opening packages. That can help choose the next version, but it does not isolate which small detail caused a result. To study the wording alone, run a narrower comparison with the same source and timing.

Use the result to decide what to make next, and keep uncertainty visible. A few early clicks or views do not establish a universal rule about a face, word or hook type.

Questions & answers

Do I need three different creators?

No. You can vary the line or structure with the same creator. Choose differences that match the question you want to answer.

Are three versions enough to prove a winner?

The number of exports does not establish statistical reliability. Results depend on delivery, sample size and the size of the difference.

Find the opening for your next edit.

See the public samples, then unlock the library when you’re ready to work with the originals.

Explore the library