Start by putting all of the hair on one side.
Divide the hair in half.
Then braid two fishtail braids. Here is our tutorial on fishtail braids
Take the two fishtails and twist them together. Keep them flat or it will look bad.
Once done secure with a rubber band and loosen it up a bit. Get it the way you want then bobby pin the two fishtail braids together making hard for it to move.
Have fun and enjoy!