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

The footage

Choose a reaction that fits your product demo

The best-looking face on a cover is not always the most useful shot. Choose the moment you can cut, not just the frame you like.

On this page
The useful bit

Compare candidates against the same product demo. That reveals whether the expression, timing and crop actually help the story.

A compressed sample from the library

Hover or tap to see the motion. This is source footage, ready to combine with your own demo. Paid members can browse and download the originals.

What comes with a clip

Write down the feeling your next shot earns

Name what changes in the product footage. A messy list becomes organized; a search finds something; a small shortcut avoids a repeated action. Choose the emotional size of that change before searching a reaction category.

“Shocked” is a useful filter, but it is not a creative brief. Decide whether you need curiosity before a reveal, confusion before a solution or satisfaction after a result. Those positions in the edit create different meanings.

Compare three expressions on the same action

Imagine a saved-item search. A puzzled look before it says the item is hard to find. A surprised look before it suggests an unexpected capability. A smile after it says the task is complete. None of those requires claiming the source creator uses the app.

ExpressionBest position in this examplePotential mismatch
ConfusedBefore the search beginsToo much frustration for a simple task
SurprisedBefore a less obvious search featureOverstating a very ordinary result
HappyAfter the correct result opensLooking like a testimonial if captioned as one

Use a quick five-part score

Watch every candidate at full speed. Give each item a rough score from one to three. This is a way to explain your editing decision, not an objective quality rating. A clip with a low crop score may still work in a wider layout.

CheckWhat a strong fit looks like
MeaningThe expression matches the promise
TimingThere is a clean place to enter and leave
CropEyes, mouth and useful gestures stay visible
Text roomThe line can sit somewhere stable
ConnectionThe cut into the demo feels understandable

Trim the movement, then test the transition

Start slightly before the expression resolves so the face does not appear frozen in its most dramatic position. Leave enough of the movement to feel human, then cut when the product can take over.

Compare the transition with and without a caption. If text is doing all the work to connect two unrelated shots, consider another clip. Avoid slowing footage so much that blinks or hand movements become distracting merely to hit a target duration.

Keep a short list you can reuse

Save two or three candidates with notes about why they work. Record the source filename and the intended in-point. This lets another editor understand the choice and helps you build a second opening later.

Inspect the original before finishing the edit. A compressed sample can show timing, but the original’s dimensions decide how much crop room you actually have. Also check whether the final sequence implies a personal endorsement that the source cannot support.

  • Candidate A: the clearest expression.
  • Candidate B: the easiest crop.
  • Candidate C: the quieter alternative.
  • Final check: watch each above the same product section.

Questions & answers

Should I choose the shortest clip?

Choose the clip with the most usable movement. A long source may contain an excellent short opening.

Can I use the same creator across edits?

Search the creator name in the paid library to see their available clips. Availability of a specific second expression is not guaranteed.

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