Tightlines Designs. Check out this step-by-step guide to tightline your eyes. Tightlining is an eyeliner technique in which you line your upper waterline to create a fuller, wide-eyed look.
Let us know if we're missing any workplace or industry recognition - Add Awards. How to Tightline Eyes. by Caitie Schlisserman. Tightlining is an eyeliner technique in which you line your upper waterline to create a fuller, wide-eyed look.