Check out this video. It's not instructional, but will show you what surface tricks are.
Surface 180s - front and back
Surface 360s - the guy does this in the video, you can do front and back to practice the handle pass
Front board butterslide - turning your board away from the boat to become perpendicular with the boat using your toe edge (toes facing away from the boat), 0:18-0:20 in the video
Boardslide (butter) - turning your board toward the boat to become perpendicular with the boat using your heel edge (toes facing the boat)
(Someone correct me if I'm wrong with the terminology of the names of these... I am calling them based off of snowboarding)
You can do these inside the wake, outside the wake, on the wake. Lots of options. Really helps progress with learning how to use all of the edges of your board.