When your oil is hot and spread about the bottom of your wok, add your meat, cooking until halfway to three-quarters done. Remember, keep the meat in constant motion. Remove meat and set aside. Add your vegetables. Raw vegetables should be heated until barely cooked.
Some people add one half teaspoon of sesame oil to coat vegetables during cooking.
This is optional. Re-add your meat to the mixture and stir. Keep the food moving at all times. If something seems to be overcooking, move it to the high corners of the wok, where it is cooler. Add any sauces or flavorings.