Languages oneself clink essay for college scholarship application sheriff Some caveats: For those in the test group, they’ll only see those auto-play videos from other users — not advertisers or brands — who upload video directly to Facebook or through Instagram or a handful of other apps. The videos won’t have audio as you scroll through the News Feed, playing with sound only if you tap them to go full-screen. And for now, it’s a mobile-only test for Android and iPhone users.