While facing one or two other players, do an over the head beat. Before you catch the ball, pass it to a nearby teammate. In the middle of the pass, hold Square to usually confuse the goalie and score. If you do not have any nearby teammates, just hold Square when the ball is in the air to shoot.
Any time your keeper has the ball in his hand, hold TRIANGLE while pushing towards the opposite goal. The keeper will put down the ball and pick it back up, then walk up to the half way line with the ball in his hand. Note: The keeper is vulnerable to tackles.
Go to the "Game Modes" screen, then choose your team. Go to "Head Start" and set it as desired. For example, if you want to win by five goals then choose "Head Start 4+" so that you will only have to score one goal to win.