The cat eye is probably one of the first tricks we learn as young girls experimenting with makeup. This effortless look can easily transition from day to night, and can be worn in various ways. For a casual day look keep the line shorter and closer to your lashes. For a more dramatic finish, elongate the line or fill it in to make it super thick. You can also use a bright color instead of black to make your eyes really pop. For more inspiration, check out variations from Dolce & Gabbana, Marni, Badgley Mischka and more below.