All depending on the distance to faucets, I will hose down the mulch after installation. Give it a dousing with water to knock out the air pockets and the material will reduce down to a flat appearance also.
Not every landscape has access to a close hose and water. So, otherwise a rake turned over does the greatest in open beds. Tight fitted beds with lots of groundcover and annuals, the wax on wax off motion will blanket spread the mulch.