i researched it.

the main thing required for defeating facial recognition is covering the eyes with IR blocking material.

The IR blocking glasses that were being sold on the site were like $150 ish?

The secret is, the lenses are just IR blocking welding glass.

You can do the same it $20 welding glasses.

Putting IR emitting leds around hat brims in addition to the glasses also helps.

the problem is, surveillance is getting very sophisticated very fast. each person has a unique walk, and a unique shape. statistics make it trivial to identify someone. to avoid detection youd have to walk differently and change perceived body shape, cover the eyes, and the most obvious, dont have a phone. (or carry it in a faraday bag)