How to Make a Reaction Video with Your Face and What You're Watching

The problem

A reaction video lives or dies on the face and the timing. Re-recording your face afterwards gives you a staged reaction, not the real one, and syncing a face-cam with a separate clip is fiddly. If you only see the thing you’re reacting to, the video has no personality. If you only see your face, viewers don’t know what you saw.

What to set up

1. Choose the Reaction setup: your face is the main view and the world is in a bubble.
2. Make the bubble large enough to read what’s happening, and place it away from your face.
3. Use a countdown (3, 5 or 10 seconds) so you can settle before the moment.
4. Light your face from the front. A window works. Avoid having it behind you.
5. Record and react naturally.

Reacting to something physical

The rear camera shows what you’re looking at: an unboxing, a taste test, a view, a game on a TV. Prop the phone so both cameras see what they need to see, or hold it steady.

Reacting to a video

DualCam records through its own cameras, not other apps, so it can’t capture another app’s screen. If you have the video itself, Demo Mode (Pro) can play it as the background while you film. See Demo Mode.

Tips

• Expression first. Keep your face big and well lit.
• Don’t cover the lens. Check both cameras before you start.
• Pro’s Pre-Record keeps up to 10, 30 or 60 seconds before you tapped record, for the moment that surprised you.

FAQ

Can I react to a video on another app? DualCam can’t record other apps. Its Demo Mode (Pro) lets you load a video into DualCam and film yourself over it.

Which layout is best? Front camera as the main view with the rear camera in a bubble. The Reaction setup uses this.

How do I get a natural reaction? Start the recording before the moment, using the countdown, or Pro’s Pre-Record to keep the seconds before you tap.