Just swing your cue like a bo like Tom Cruise and you'll win all the time. 😉
In all seriousness though, much like any other sport, go to a local pool hall and see some of the local sharks in action. Watch ESPN2 and see what all the pros have in common. Much like golf, I think that an initial 1 or 2 hour lesson is a GREAT way to start off your game, since building from a poor base is so hard to recover from since your motions are so limited.
a good strong bridge, proper grip, stance (left foot should be pointed towards the direction you're shooting, right foot turned 60-90° to the right to allow your shoulder and elbow proper clearance from your hip)...basics. get the fundamentals down and from there it's just a matter of time at a table and learning the physics of shooting.