Start with the first color you choose (don't forget to do base coat)
Get your tape or these circle things and cut out any design you want
Place design on DRY finger nail (to dry nails faster put them in ice water for 3 minutes)
Paint your nail as shown with the other color
Peel off tape or circle thing and there you have it! Don't forget top coat ^_^
Hope this tutorial helped you :) have a great day!