Charge your circle and start with the east, south, west, and then finally north.
Take wand -: ?Hail unto You, O Guardians of the Watchtower of the East, Powers of Air and Inspiration! We invoke You, and ask You to be with us this night, to share with us Your love, Your guidance, and Your inspiration. We pray that You will help us to open our minds and our eyes and strengthen our thoughts as we go forward this night. We bid You hail and welcome!?
For calling the rest of the Watchtowers according to Spells of Magic website click on this link: http://www.spellsofmagic.com/spells/spiritual_spells/conjuring_spells/4663/page.html