To really play Paper Football, the first thing you need in a game of paper football is a properly constructed ball, and then you need to know how to play the game. The rules of the game are very simple.
Basically, the object of the game is to score touchdowns. To get a touchdown, you must flick the ball with you finger (you play on a straight edged table) and have the ball stop, with part of it sticking over the table, as seen here. That is 6 points. Players take turns, one flick each back and forth untill someone scores. If the ball goes off the table, you kick off. Hold the ball in your hand, resting on the plam, and toss it on the table by hitting your fingers on the underside of the table.
After a touchdown you can kick a feild goal. Whoever is kicking hold the ball vertical between his finger and the table, and with his kicking hand, he flicks the ball with his finger. The other person is holding a field goal with his finger aranged in a position, look here If the ball sails between the two posts, its good for 1 point. See it in air here