To draw down the moon go outside underneath the full moon. Standing in the Goddess' position which is this; Have your arms outstretched towards the moon in a "V" shape. Have your legs spread out about shoulder width. This position will let you receive all the energies from the moon and the Earth through your palms and your feet.
If feasable you can be skyclad (nude), if not barefoot will be just fine. Stand in all of the goddess' glory and say the invoction below:
Drawing Down the Moon
From the misty hidden caverns In ancient magick days, Comes the truth once forbidden Of thy heavenly veiled ways.
Cloaked in velvet darkness A dancer in the flames You who are called Diana, Hecate, And many other names.
I call upon your wisdom And beseech thee from this time, To enter my expectant soul That our essence shall combine.
I beckon thee O ancient one From far and distant shore, Come, come be with me now This I ask, and nothing more.