Step 2: Tying the knot
Carefully begin wrapping the end of the string around the noose as shown. Now, once you have several loops, poke the right - hand end of the string through the upper loop of the "S". Pull the noose to tighten it up. Once you've done that, hold the coil, and pull the string above the noose to tighten it more.
Step 3: Begin the execution
Hang 'em up, and freak out family and friends.