The key to style a petite rectangle body shape is to make your boyish figure look more feminine. Laces and ruffles are the key words. Define the waistline through tops or blazers that emphasize the waist. Halter necks give the illusion of bigger busts and show off your back. 3/4 sleeves usually work really well for you by showing some skin. A line skirts and skirts with ruffles add curves to your bottom half. Knee length tight pencil skirts will also add some curves. Wrap dresses create the illusion of curves and empire waist dresses accentuate your chest area. Wear skinny jeans to emphasize your beautiful legs.