The quickest way is to smudge a brown, grey, or deep jewel-toned liner along the top lash line (thicker at the outer corner than inner) and halfway along the bottom and then apply your favorite mascara. You can always get more elaborate than that with makeup techniques like fox eyeliner and strategically placed eyeshadows for a sultry or smoky effect, but it doesn’t take much to play up your eye color and make them stand out. Starting with the basics can still accomplish so much when it comes to enhancing your natural beauty.