To shush the music, he simply holds a finger up to his lips. And when he gets up from the couch and leaves the room, his TV screen pauses automatically. Banjara is a cofounder of PredictGaze, a startup that combines gaze detection, gesture recognition, and facial-feature recognition to create more natural ways to control everything from your TV to your car. While many people are just getting their hands on their first touch-screen gadget, PredictGaze is one of a slew of companies betting that touch-free controls will be the next big thing. With front-facing cameras being embedded in all sorts of gadgets, it's not hard to imagine.