Add the rice, and use a metal spatula to flatten out and break up any large clumps. If the rice is cold from the refrigerator, continue stir-frying until the rice is warmed up, which will take about 5 minutes. If the rice was made fresh, cooking time will be faster. Just make sure that the rice isn't too wet, which will make frying it difficult. Sprinkle salt, sugar and ground pepper. Mix it well.