After prepping your nail with your favorite Base Coat and Cuticle Protector, apply 1-2 coats of I See Blue.
On BM-XL356, apply Straight Up Black to the desired heart design. Use the Scraper to spread the polish throughout the design, then quickly pick it up with the Stamper and apply it to the top half of your nail.
Repeat step 2 but with a lined design and place it to the bottom half of your nail.
Remove the cuticle protector and finish off with your favorite Top Coat.