The best thing to do is to buy a book on it. There's way more to turkey hunting than can be explained here.
A book called Hunting the American Wild Turkey by Toby Bridges gives a great rundown.
Start by scouting areas that you've seen them in when driving around. Their always in farm fields around me, but I don't know what your area is like. Scout at sunset by using an owl call, or a turkey box call and yelping. Try to get a gobble at night, and set up pre-sunrise approx. 100 yards from where you heard the gobble the night before. Start calling, but just enough to coax a morning gobble, and sit tight. Try to call in the bird.
Make sure to pattern your shotgun before hunting. I like Winchester Supreme high velocity turkey loads using 2oz of #5 shot, but everyone has their favorite.
Turkeys are all over when you're driving and it seems like you could walk over and just pick one up. They're scarce, cagey, fast, and can see ANY movement when you're hunting them!