Use Q-Tips To Fix Your Wing
Messed up your wing? No sweat. Dab a Q-tip in makeup remover — ideally, a micellar water or non-oil-based kind works best, so that your liquid eyeliner or eyeshadow won't run — and use it to clean up the edges of your wing.

Pro tip? To avoid further smudging, wait for liquid eyeliner to dry before you try to fix it.