1. Cut entire body out. Make sure you don't inadvertently cut off anything that is attached to the body of the model.
2. Cut out the two grey circles located on the body. This is easiest when done with an Exacto knife or a single hole punch, but scissors can also be used.
3. Slice the bold line where Tab A connects to the body.
4. Make a slit by slicing the line on Side Panel 1 and the slits located both on Side Panel 2 and the body. The arrows on the diagram show where you should cut.