I got this color by accident - i really meant to get Edgy Emerald, but couldn't remember which i wanted. It's still a great color. It is NOT Teal, but actually turquoise with some shimmer.
I used it on my upper lid, covering from the lashes to about halfway with a small brush, getting intense color and full coverage. Then i applied it in a sheer line under my lower eye lashes. I put a fine dark eye liner on my upper lid for a bit more definition. It lasted almost 12 hours, although there was a little fading. But it wasn't that bad, since i was out with friends at a baseball game until fairly late (nice fireworks) in hot muggy weather.
I have three other Color Tattoos (orange, bronze, & taupe). I still have to get Edgy Emerald, and want to pick up the gold and the pomegranate. Plus i hear there are some Limited Edition colors for Fall 2012 i have to see if i can find, too!