Lay the guitar on a table with the sixth string closest to you. If you are uncertain, the sixth string is the lowest string on the guitar.
Starting with the sixth string, rotate each string's tuner to loosen it. Once each is loose, uncoil it from the tuner. At the other end, remove the bridge pin. If the pin is tight, use pliers to remove it.
Uncoil the string from the package. Place the ball end of the string into the hole at the bridge end. Align the string and the carved side of the bridge pin, and gently pull on the string as you slide the bridge pin back into place. Next, pull the free end of the string about 1 inch past its tuner. Crimp the string downwards at a 90-degree angle. Turn the tuning peg so that the hole faces up, and thread the string into the hole. Once the crimp rests against the tuner, crimp the end of string that is sticking out of the other side. With one hand, turn the tuner to tighten the string. With the other hand, use your index finger to hold the string against the fretboard and the rest of your hand to gently pull up on the string. Once the string is taut and in tune, cut the end of the string. Repeat these steps for each of the remaining strings, moving from lowest to highest.