|While the person across the booth from you is not looking bring your knife, fork, and napkin under the table in your lap.
Wedge the blade of the knife into the prongs of the fork. (Don't break anything)
|With both hands hold the top corner of your open napkin. With the thumb of one hand also hold the handle of the knife so that the fork's handle points up over the top of the napkin.
| Hum a catchy tune while making the fork and knife dance behind the napkin for your friend.