spray your hair with strong hairspray ( i prefer got2b freeze spray), or run it through with strong gel or gatsby wax. quickly comb the top of your hair straight up and forward. also comb the back of your hair up so it sticks out a little bit. i highly reccomend referencing to a photo of him - here's a good one,
try to keep it a little wild/messy, but not too much. try to shape it to a general "point' at the end.
also, don't pinch or twist your hair into spikes (not too much anyway). you can if you have to but it won't look as natural as simply combing through your hair.