Trending Yellow Happy Face Nails / The sheer, pink base coat on her oval nails are topped off with the palest yellow dots that have been turned into smiley faces with tiny black eyes and mouths. Emojis face of black and white nails done by tiffany @happynailva. Yellow Happy Face Nails - Most likely, your nails have become discolored because of an infection you have or a product you used.
