It is easier to work with when the sticker is flat. So please use hard flat things to lay on it to flat. Steps: 1. Choose a smooth, clean and dry surface.(never put it on bumpy, dirty, wet surface, or the sticker will fall off) 2. Peel the sticker from the sheet one by one. (also you can DIY) 3. Position the adhesive on a plat surface and pressing them and let the air out. Note:Make sure the wall is smooth enough, so that the sticker will work for it. If the stickers is not pasted well on your wall, please use the hair dryer to blow it before you paste it. PS: If there is any question or problem, please feel free to contact us, we will do our best to resolve it, thank you for shopping in our store.