* Upper lash line: This is the most common placement, applied along the base of the eyelashes on the upper eyelid. It can be a thin, subtle line or a thicker, more dramatic one.
* Lower lash line: Eyeliner can also be applied along the base of the eyelashes on the lower eyelid. This can create a more intense or smoky look. It's often applied more lightly than on the upper lid.
* Waterline (tightlining): This involves applying eyeliner to the inner rim of the eyelids, right against the eyelashes. Applying eyeliner to the upper lash line waterline can make the lashes look fuller without any visible eyeliner. Eyeliner applied on the lower waterline can make the eye look smaller and more defined, or can create a more dramatic effect.