How Do You Control Glasses on Your Face?

A wristband that lets you kind of have a phantom limb to type and control them. You use optical tracking, h cameras in front of you, and it can kind of pick up your hands,. And then you gesture, and it's like, minority report and the minority report inter face is both, you look weird cause you're gesturing the stuff nobody else can see. Addie will explain this, cause she's actually tried it too.