First you have to hollow out the pumpkin and draw the face as always, then cut a small hole so that saw end can pass trough.
Take the saw ends with your hands and start to carve:) Its very easy to follow the drawn lines. Take out the excess pieces, and clean the parts you carved with some paper :)
In this way you can create very detailed carvings. Have Fun!
For all of you who don`t have this saw, it costs around 9$ and its amazing!!