Hair extension questions?!?!?!?!?

these are about 18 inch hair extensions and my advice to you would to put 3 layers of hair extensions into your hair, putting one layer at the bottom,middle and closer to the top, this makes them look like your hair because they blend. And i would recomend having layers cut into them, but make sure your natural hair is layered too, i personally think layered hair looks nicer and will make the hair extensions look real.