Enough of heart-shapes, let's try a heartbeat manicure! 1. Apply base coat and two coats of red nail polish. Allow to dry. 2. Dip your nail brush into white polish and carefully start painting the lines. Begin with a short dash on either side of the nail to ensure the ends will match up evenly. 3. Continue to create the spikes and dips of your heartbeat until you’ve connected the two dashes. 4. Apply top coat and allow nails to dry.