You can place it at room temperature in an open bowl, out of direct sunlight for a few days. To maximize it shelf life, store unwashed in the fridge to avoid moisture retention on the skins that can lead to mold and spoilage.
Wash each navel oranges with water and rub the surfaces gently under running water and dry with a paper towel. For juicing, cut crosswise in half from the middle and squeeze juice using any mechanical or powered juicer. It may also be cooked or eaten fresh. Use the juice and zest for marinades, syrups, vinaigrette, cocktails or to flavor sauces and custards. It can also be preserved into jams and pickles or dried into natural candies.