Lip liner is a beauty lover’s BFF and the makeup bag must-have has come a long way since the ’90s (think: overdrawn and super thick). A good pencil can make your pout look plumper, help your lipstick stay on longer and prevent smudges or feathering.  If you’re new to the lip liner scene and don’t know where to start, don’t worry. We tapped celebrity makeup artist Tiffany Hall-Scarmana to get some tips on how to line your lips like a pro. So pick up your pencil and keep reading because we’re sharing all the lip liner basics, ahead.