I have baby-fine hair. Fortunately, I have a lot of it. In order to do a style like this, my hair needs to have product in it from the day before to give it some heft. This is what I started with:
I brushed through it to break up the hairspray.
I worked a dime-sized amount of Redken Rewind through my hands, then grabbed chunks of my hair, pulling it up and out.
I smoothed the bang over to the side. I used bed Head hard Head spray to make the piecey spikes in the back. I let it dry, then added another coat of the spray. I also lifted the top layers and sprayed under them to create some height on top.
I finished it off with a spritz of shine spray.