Steps:-
1. Apply two coats of your base color.Dry it completely.
2. Take a piece of tape and make a small vertical cut at one of the corners. I used four or five pieces on each nail for reference, and be sure to leave a "tail" so they are easily removed.
3. With the sponge, paint one of the corners with the first color, and sponge in a few random sections on the nail.
4. Repeat step 3 with the second color. Overlapping a bit of the previous color without covering too much area is what you want.
5. Repeat with the third color, covering the rest of the white on the nail.
6. Remove the tape from the nails one by one.
7. Clean up the cuticle with some remover.
8. Finish with a top coat.