My strategy was to pay attention to the lighting conditions. the fake ones fall within a recognisable averaged out distribution, and a photo with lighting that

My strategy was to pay attention to the lighting conditions. the fake ones fall within a recognisable averaged out distribution, and a photo with lighting that is an "outlier" is easy to spot as real. E.G. Dark blue mood lighting. Overexposed features. Glare in the eyes. a lot of the fake ones also have a recognisable skin gloss.