Hi,
This is what I do in light non-planning conditions.
Light wind off the plane they will be big slow arcs, make sure you keep power in the sail as you turn to drive the turn, which means you will need to keep changing the sail angle as the board turns. Put a bit of weight on the outside rail of the turn as it will help it move the board around; I always think the difference between shortboard and longboard (non-planning) is like the difference between the lean of a motorbike vs a car in a turn.
Once the nose is >180deg off the wind direction flick the sail over and use the momentum of bringing the sail around to help bring the nose around and finish the turn.
You can pivot gybe by standing on the tail to pivot the board around but be ready to run up the board and flip the sail once the nose swings round, these are fun to do. You can also do this on short boards.
I went through some old GoPro footage and put this up on youtube.
Hope this helps.