If you've searched for videos often enough on Google, you've probably had that moment where you tapped the wrong video because you weren't quite sure it was what you were looking for. No more: Google has added 6-second video previews to its mobile search results. As of this week, searches in Android's Google app or Chrome can show you a little bit of what each video entails as you flip through them in an on-screen carousel. The sneak peeks will only appear on WiFi by default and are opt-out, so you don't have to worry about burning through precious cellular data unless you're ready.