While wearing this hat, the wearer takes on the appearance of a fey creature. Medium-sized creatures appear as lean, tanned elves; and small creatures appear as gnomes with wild, bushy beards (regardless of gender). While disguised, the wearer has advantage on Charisma checks made while interacting with fey creatures and creatures native to the Fey Plane.
You don the Hat of the Fey, your skin tanning, body slimming into a lean elven form. Your features sharpen, ears elongate, and a wild, bushy beard sprouts, masking your true visage.