Strong eyeliner has been a big beauty story for spring and summer and will continue into the fall. We love the look of a chic, clean cat eye—a velvet smooth swoop of black liner along upper lashes with a feminine flick at the end. Believe us when we say creating the look is actually easy—once you have the technique down you can create a cat eye everyday and for your wedding day! We got some pro tips on from Caitlin Callahan, a senior artist for MAC Cosmetics. Read on to get the inside scoop on perfecting your swoop.