Dip a toothpick in the polish and begin outlining the heart. “Pull” the polish toward the center of the heart by dragging your toothpick inward. Don’t worry if it’s uneven–you can add a drop of fresh polish right on top of the center to smooth it out at the end.
(I’m showing this on a tissue but you do this on your actual nail)
*less is more here. You can always add more color, but its hard to work with big globs of color.