I Have been looking ALL OVER! For a simple and quick way to do a cat eye. And since I absolutely STINK at makeup, I figured.. If I can do it, you can too. It took me a couple of tries after I figured out how to do it, but I hope that I make this as descriptive as I could.. :):)
Start out by applying a medium amount of eyeliner, starting in the inner corner of your eye. I like to do small feathering lines instead of one long one. Because I think that it leaves less room for mistake.
Taking cue from your bottom lash line, using the same curve that you would naturally get if you were extending your bottom lash line, make a little "Flick". When you close your eyes, it should look like a small happy smile :) with your eye open, it will just look like a very thin cat eye.
Close your eye, now start at about the middle of your eye and make a line connecting the middle of your eye and the very tip of your little "Wing" or "Flick". Fill in if necessary.
Add some Purple, or Red, or even shimmer eyeshadow. Now pose :)