Use an emery board to file and shape the nail on each finger. Start with your little finger, and use short strokes to file from the outside edge of the nail toward the center in the same direction. File with two or three short strokes and then one longer smooth stroke. If you file your nail this way, you will avoid any splitting. The single longer stroke blends and smoothes the edge of the nail so it is uniform. Nails grow in a variety of shapes and sizes, but there are four basic shapes: pointed, oval, round and square. You can buy emery board at low rate.