First, you'll need to choose your colors. Pick three. They should be cut to be wrapped around you wrist three times.
Tie another half knot. This is called a square knot.
Take the loop off your finger and tape it to a surface. This will keep it stable.
Lay down the two and put the one over them. Then pull your chosen color between itself and the two.
Pull the loop all the way up to the tape/square knot.
Repeat steps 5 and 6 about 7 times.