Create a Cat Eyeliner using a soft eye pencil (any dark color will work great). Click here to see how it's done: Cat Eyeliner - lesson #1
Using a small brush with dense, short hair (called a "pencil brush" or "precision eye brush") begin blending the pencil onto the eyelid, creating a "Smokey" effect. You can dab a small amount of dark eye shadow onto your brush to set the pencil, or slightly alter the color of your makeup. Make sure the pencil is well blended, maintaining the basic cat eyeliner shape.
Using the same pencil used in the first step, line your bottom lash line, making sure to color well between the lower lashes.
Use your pencil brush to blend in the pencil on your bottom waterline. This should create a Smokey look on the bottom waterline, mimicking the top line.
Coat your lashes with 2-3 layers of black mascara. This looks calls for mega lashes!
Using a white or cream shadow, create a highlight on the bottom, outer corner of your eye. This will enhance the cat eye shape and complete your look.