Pinch pleat curtains - over or below the curtain pole

[Handsnotwands]

And will any type of pole do?

Below the curtain pole to allow the 'gap' sections to go to the back without hitting the pole.
The top of your curtain should be roughly in line with the bottom of the eye at the base of each curtain ring.

Oh yay. Thank you. They’ve been something of a mystery but that makes good sense. Appreciate it