Start off with a base color of nude polish. Or you can simply keep your natural nail color.
Paint the right corner of your nail white.
Use a dotting tool dipped in black polish to make 4 or 5 black dots above the white section of the nail. Then do the same with silver polish, but this time go over the black section of the nail. If the sivler dots cover one o the black dots, that is fine.
Finish with a fast-drying clear top coat, and you're done!