I go out a lot with open toe sandals on and my bright red toes showing. In fact last Feb, wife and I were on vacation. We went to a water park where they have a man-made river which you can float down in tubes. I forgot my water shoes but wife and I went floating anyway. We were on the river for about 2 hours among tons of women, men, and kids. The whole time my Bright Red toes were showing. Not once did I get a stare or a word. No one pointed fingures or anything. After worrying for the first 1/2 hr, I relaxed and enjoyed the river float.
BTW, no one seems to notice I have long acrylic nails either. My nails now stick out over 1/4" past my tips. I also keep them polished a Pale Pink.