If you want to take your makeup to the next level, then an eyeliner such as this is a good choice. This eyeliner is waterproof, which is very handy during summer.
Amazon
Lilly Lashes Click Magnetic Liquid Eyeliner - Eyelash Glue for Magnetic Eyelashes - Easy to Apply Waterproof Eyeliner Lash Glue for Fake Eyelashes - Black Magnetic Eyeliner to use with Magnetic Lashes