Observation only — no facial recognition, no identification, no friend-or-foe judgement about any person. Behaviour, objects, vehicles, hazards and signage only.
Checking whether the glasses expose a camera to this browser…
On the glasses say "Hey Meta, take a photo" or "Hey Meta, record a video". If the phone says low storage, delete/offload videos first; the app will not pretend the capture failed for some mystery reason.