Once you have the center pinned back you’ll tease the roots of two more sections, one on each side of the center section.
Use a pin on each side to push each section forward and pin it up. Each side section should “match” the center section in “poofiness” and smoothly transition between sections. The look you are creating is a half-up, pinned-up curls with a lot of volume.
Use a 1″ flat iron or a curling iron to touch up any curls that are left down.