YouTube is testing a new feature called Play something in its mobile app for Android users, designed to help users choose content. This feature appears as a floating action button (FAB) in the YouTube Android app version 19.50. When engaged, it plays videos within the YouTube Shorts interface and can also play standard YouTube videos in portrait layout, with interactive features like liking, disliking, commenting, and sharing. A timeline scrubber appears for navigation, but the FAB disappears when the YouTube mini-player is activated. Additionally, YouTube is testing a vertical scroll gesture for video navigation and has expanded its AI-driven auto-dubbing feature for transcribing and translating videos between English and various languages.