The idea behind making up a "mature" face is to not go too overboard. You don't want to appear as if you're wearing a lot of makeup. So start with a light hand and apply extra coats as need be.
When it comes to the eyes, decide how much you want to play them up. If you want a light touch, simply sweep a neutral color over the lid to the browbone and apply an eye pencil to the lower lashes, smudging them a bit so they don't have a harsh line. If you want a bolder eye, apply a darker contour shadow in the eye crease, making sure to blend, blend, blend the color in. You can follow up with a highlighting color on the brow bone, but I usually skip this step because it can look unnatural.
Step back and look at your eyes. If you need more definition on the top lid, apply a liquid liner right at the lashes. If you have light skin and hair, don't go darker than brown or gray. If you have darker skin, you can get away with black liner.
Get more eye makeup tips in Eye Makeup Tips for Older Women.
