To unmold salad, quickly dip the mold, almost to the top, into warm (not hot) water for several seconds. Loosen edge of salad with tip of knife, then tip mold slightly to allow air in and to break vacuum. Rotate mold so all sides are loose. Place serving plate brushed lightly with water upside down on top of mold (the water will let you move gelatin on plate in case it doesn’t come out in the center.) Holding both mold and plate firmly, turn mold upside down and shake gently. Carefully lift mold off gelatin. If gelatin doesn’t come out, repeat steps. Refrigerate salad until serving. If using decorative bowl, do not unmold; scoop salad from bowl to serve.