If you want to try the nostalgic look for yourself, here are 12 swoon-worthy examples of the smiley face nail art trend that are equal parts joyful and chic. Go for a minimalist take on the trend ...

they'd start spotting happy faces and sending photos to Ruth. Ruth decided all these photos were what she calls "public art." She started a Web site and a Facebook group called Spontaneous Smiley.

but several of his paintings and other pieces in the exhibit feature smiley faces. “I’ve seen more smiley symbolism lately, and I’ve tried to refrain from using it for most of my young ...