For a natural-looking way to define my eyes, I line my upper waterline with a waterproof gel liner. Lashes look thicker without looking like I’m wearing makeup. First, I run a cotton bud along the waterline. Then, I begin at the outer corner of my eye, moving inward, making small dashes as close to the lash line as possible. I go back one more time to connect the dashes and clean up any mistakes. I finish with a quick swipe of mascara and I’m out the door. For this look, I used Rimmel Waterproof Gel Eyeliner, but any waterproof liner will do.