The functionality allows users to trigger on-screen reactions during FaceTime calls through specific hand movements recognized by the device’s camera. For example, a thumbs-up gesture may produce a visual effect of balloons rising on the screen for all participants.
This feature enhances the interactive experience during video calls, providing a non-verbal means of expression and engagement. Its implementation offers a more dynamic and visually appealing method for conveying emotions or reactions beyond simple vocal communication. The use of such gestures builds upon previous advancements in camera-based recognition software present in modern mobile operating systems.