Using eye smiles to predict the state of your whole face in VR

They say you can tell a real smile because it reaches the eyes. Of course, that just means we all have to learn to fake that kind of smile, too. But the subtle expressiveness of our eyeball area has a fringe benefit: VR researchers can use it to guess at what the rest of your face is doing. Google Research just published a fun little project that attempts to track expressions solely by looking