How to react with hand gestures on Mac | Apple Support

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Starting in iOS 17, iPadOS 17, and macOS Sonoma, you can use hand gestures to share 3D augmented reality reactions in FaceTime, Photo Booth, and other supported video conferencing apps. Try it out while using the built-in camera on your Mac with Apple silicon, or on any Mac when using Continuity Camera with iPhone 12 or later.

To learn more about this topic visit the following articles:
Use Reactions, Presenter Overlay, and other effects when videoconferencing on Mac:
Use video effects during FaceTime calls on Mac:
Add reactions in a video call on iPhone:

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