1. Using the spatial cameras/features to scan your own face. I'm surprised Quest 3 doesn't do this... As soon as I saw the concept, I thought, "DUH! So smart it's obvious in hindsight!"
2. EyeSight, to enable people to still "see" your face when you wear the device. Very cool... As a Quest 3 user in mixed reality, I think I freak my family out when I walk around and talk to them.
Really neat!