Learn how to dribble. Dribbling is controlling the ball while running. If you want to keep the ball in your team's possession, you're going to need to dribble well. Dribbling is all about touching the ball strong enough to carry it forward, but light enough so that it stays by your side — and away from opponents.
You can dribble with the inside of your shoe, above the toe (with the foot pointed down toward the ground), and even with the outside of the shoe. The safest way to dribble is probably with the inside of your shoe, but in different situations, you'll have to use different parts of the shoe.
Learn to dribble at different speeds. When you're running down the sideline and you've beaten your man, your dribbling will look a lot different from when you're taking on a defender head on.
When you're dribbling slower, you usually keep the ball close to your side at all times. This way a defender has to make a move to take the ball away.
When you're dribbling faster, you can sometimes kick the ball further away and run to the ball. This is usually if you've already beaten your enemy. You do this because most players can run quicker off the ball than they can dribbling it.