On top of the suggestions to use baseball caps, medical face masks, big sunglasses or infrared blocking sunglasses, (while suggesting all the other anti surveillance stuff goes obsolete too quickly), I bet old school sweat bands would work a treat, added in the mix, too. You could pull them over your eye brows, even, or ears. Or headbands pulled down. If you just have to obscure enough of your face, with coverings, to reduce a match, as suggested.