On the night of a new moon, write your wish on a bay leaf. Simply take the bay leaf outside and look at the moon. Because this is the time when the moon is new, the sky may be completely dark, in which case look in the direction you think the moon might be, otherwise, you might see a slender silver crescent. Kiss the leaf three times and sleep with it under your pillow.

Since the bay tree is governed by the sun and ruled by Leo, this charm is particularly potent when the sun is in Leo, between July 23 and August 22.

From: The Good Spell Book