How to define blue or green eyes: Use white eyeliner to draw a THICK line above and below eye line. Smudge until the harsh edges are gone. Next, carefully apply the darkest mascara possible, preferably a separating mascara and coat every lash. Try not to get it on the white that you just added. Don't forget to fill in your eyebrows with a shade of eyeshadow that matches your hair. Finish with a neutral shade of lipstick or just chapstick. DONE!