Try holding the spool of new line in your left hand using a pencil thru the center, then turn your reeling hand upside down while turning the crank with your 2nd to big toe on the right foot
while scratching the back of your right leg with the last 3 toes on your left foot while humming a few bars of Ol' Mc donald had a fish farm in the key of D minor
while being sure not to apply too much pressure to your middle ear or
you might fall over causing you to have to restart
IF that doesn't work you can always try what he said below a couple of entries below this.
Seriously now I just spool it on like the formentioned and let it unwind off the top and apply "light" pressure. Been using the same braid now since spring with not so much as a single foul up. Good luck to you and happy spooling.