Once you've reached the end of the braid, tie it off with an elastic. Preferably a thin, clear one, but if not any hair tie will work.
Step 2: Step 2
Take a small outer piece of one of the two sections of your hair (it doesn't matter which section you start with). Cross the small piece over and add it to the inside of the other section. This piece you have crossed will now become a part of the other section. Keep your crossed piece tight or hair may start to come out once you've finished braiding.