How to get wavy hair like this?

I KNOW! lol, well, what i do, after you have a shower (in the evening) dont blowdry your hair, just tie it up in a bun, and sleep with it, (you could also plait it if you want), when you wake up, just take it out of the bun or plaits and it will be REALLY nice and naturally wavy looking. dont brush it out or it will be all frizzy :P you can apply some hairspray or something. OH and when you take it out, it smells SOO much like shampoo and yeah.. :D hope this helped!