Sure, it’s annoying when someone tells you to smile — but, regardless of your mood, it’s totally possible to have your nails smile for you (and that’s never annoying). Slapping a smiley face or two ...

William Shakespeare and Mark Twain may never have needed emoticons, but textual smiley faces have grinned, smirked, and grimaced their way into today's e-mail and instant-message conversations. The ...