Learning a draw golf swing lets you drive the ball from right to left. This is a useful technique, especially if you're on a fairway in which a dog-leg from right to left demands you turn a corner to advance. It also lets you shoot around hazards or trees. Basically, the draw is a controlled hook shot.
Aim the club face at your target.
Align your feet, hips and shoulders to the right of the target. The more right you need to draw the ball, the farther right you should stand.
Position the ball slightly back of center in your stance.
Take your normal swing. This setup is a more in-to-out swing path bringing about a right-to-left ball flight.