[kayodelycaon]

If you have an iphone, you can use the camera flash for this: https://support.apple.com/en-us/HT210065

[SkinTaco]

One person at a ~30 person meeting I attend weekly has this turned on and every single attendee knows exactly who that person is.

[kayodelycaon]

Oh definitely. I prefer to use an Apple Watch since it's just a bit more subtle.