― It’s all in the eyes. Even on a plain day, most ladies rely on liner for quick definition. There are tons of different eyeliner tricks and methods out there right? If you want your eyeliner to look smooth and professional, it is helpful to have some easy eyeliner tips and tricks in your arsenal. A few popular and very useful eyeliner tricks that will enable you to rock different looks are given here. ∙ The Best Easy Eyeliner Tricks ∙ Use waterproof eyeliner on the lower lash line [...].