duck, tie a shoe drop something etc.. leave your shoe lace untied tie it over and over again. loose a "contact lense" must hold eye while doing it.
hoodie, keep walking... in opposite direction from what you want to get detected. if foward moving makeup if you got it, glasses. some of it could stand out like a soar thumb. change of apperance etc.. dye, shave, or add fake facial hair. a good full bushy beard can hide a lot of face and mask facial recognition unless it bypasses facial hair. putty skin drink water, dehydrate self, eye colour changing contacts, tatoos.
anyone that actually expects to hide can assemble a disguise kit fairly easily.
Crawling around on the ground will attract attention unless the crowd are in it with you.