This is such a simple idea, but it's getting it to work correctly is harder than you'd think: The eye has to read the words in the correct order. The font has to be big enough to read, but not so big that it looks out of place. The facial expression has to be just right. I'd love to say I just dashed this off, but it took a good bit of Photoshop to massage everything into place. Sometimes it's those little simple ideas that take the most work.