One of the trickiest but most used beauty staples to master applying is eyeliner. After all, anything from an intense cat eye to a barely-there wing can elevate your makeup look in an instant. When it comes to knowing which look, technique and product is best for you though, it’s important to consider your eye shape. For pro tips on how to apply eyeliner for almond-shaped eyes, we spoke with celebrity makeup artist Vincent Oquendo.