An improved method for draping curtains which allows one person to form a decorative window treatment known as a bishop tail without requiring any specialized skills or training. The method described hereinafter allows a fabric scarf to be draped from a rod of conventional configuration in a decorative manner about a window opening. The method uses hook and loop type fasteners means to secure the fabric scarf to the rod and thereby prevent the fabric scarf from sagging at the top. Curtain rings are placed over the ends of the depending fabric scarf and then installed on the rod near its ends to allow a portion of the fabric scarf to form a decorative downwardly curved arc of fabric. The newly formed arc is then "dressed" or folded into pleats in accordance with the teaching of U.S. Pat. No. 5,146,972 to William L. Tacchella. A hook closure ring is then installed through the previously hemmed edges of the fabric scarf and hung by a cord from the wall bracket to form the bishop tail.An alternate embodiment is shown with a pair of bishop sleeves placed below the previously described bishop tail of the preferred embodiment. A second section of fabric scarf is hemmed on one edge and hung by a hook closure ring from the bracket behind the first bishop sleeve. The depending portion of the draped end of the fabric scarf is gathered and placed within a hook closure ring. The hook closure ring is then suspended by a pinch ring from the rear of the fabric scarf to form a bishop sleeve. The process is then repeated for the other side of the window.