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Depends. Are you attending an ICP concert, or a military reenactment convention, or something else entirely?

If it's the gathering, then all of the above is more or less true.

Family gathering

You would want to test the camo. I suspect there is more than just changing ones appearance. I believe I've seen a story talking about not needing to see the entire face. You can still id people wearing neck gaiters and other face coverings if you can make out the facial contour. I think you needed about a third of the face uncovered. https://hyperverge.co/blog/masked-face-recognition/

Edit found a link pretty fast.

Pretty sure gait analysis is as good as facial recognition. Maybe wearing shoes with weird heights would confuse it

Or put a tack in the bottom of your foot so walking is painful as hell.

I wonder if kawaii face paint would work