try use tip of knife or cutter to pull the stickers and put onto the cars.. agree.., this method we usually use as easy to apply onto cars. 1st on the yellow sheet corner, band the transparent sticky layer to triangle, or cut the transparent sheet in triangle. So left the yellow part can stick the sticker like it original. Make sure that corner had no sticker. Tear of the sticker, and stick the sticker corner little bit on the yellow sheet just now bended or cut of the transparent layer, then slowly apply to the car. When the position is correct slowy tear off from the yellow potion, and stick the rest of the sticker. This how i normally do, using iron thing if no careful, might accidently damage the car paint.