Take one pumpkin cut in half after it is washed off of course scoop out seeds separate from the pulp these can be set aside to be dried in food dehydrator for a light snack.
3-4 cups of pumpkin one half of large pumpkin will make a lot of juice enough for 2 people easily.
dash of cinnamon and nutmeg "optional"
Cutting peeled pumpkin in sizes small enough to fit in juicer chute depending on strength or style of juicer this may not work.
I have a strong centrifugal style juicer my Breville Juice Fountain Elite. I have heard many people say the auger style doesn't work well with getting juice from pumpkin can always use high speed blender and make smoothies or pudding.
After juicing or blending has been completed transfer to glasses and garnish with spices if so desired and enjoy.