How can you prevent spaghetti from sticking together while cooking?

To prevent spaghetti from sticking together while cooking, make sure to use a large pot with plenty of water and add salt to the water before boiling the spaghetti. Stir the spaghetti occasionally while cooking and avoid overcooking it. After draining the spaghetti, you can toss it with a little bit of olive oil to prevent sticking.