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To get the ultimate look from your at-home gel nails, start with the ultimate blank nail. Take the time to cut, file, and shape your nails. Before you cut them, decide what shape you want. Cut the basic shape and then file the tips. Finally, finish shaping by rounding the surface of your nails with a buffer.  You can create round, square, pointy, almond, or oval nails. Because gel nails are based off of your nails, this is when you shape your nails. It is not like applying acrylic nails that can be shaped during/after application.
File and shape your nails.