Start with just left poi.
Lean slghtly forward rotate poi as if stirring a big pan.
When poi swing away bring hand up towards forehead and as poi passes right side pretend to brush hair to back of head.
As poi return pull back to be in front. Swing other poi the same way.
Now you will brush your hair forward on overhead swing.
Look at hand movements on video.
Ths is a good move to enter the windmill (look later) by standing straight and swing poi vertically.