Ah, here is a better example of what I mean by the right light.
Ironically, going naked is more subtle, fewer people notice, whereas if I wear some underwear it really stands out and nobody would possibly think I was unaware of how see-through the dress is. Whereas with nothing underneath the light has to be just right and you have to be paying attention to me in the first place to notice, rather than just walking around the store minding your own business.