Man, that's a loaded question!!! First and formost... and I think everyone will agree with me for asking this question: Are you sure, I mean really sure, that you want to get into this hobby? Because if you do, it will dominate the rest of your life... FOREVER!!!!!!! If your willing to become addicted then this forum is a good place to start. First, a lot of how you go about it depends on what part of the country your from, and what you have available to hunt. Check your state laws and make sure it's legal. If possible, find a mentor. I got lucky with that one. It may be as easy as starting a thread on this or other forums stateing "I'm from BLANK and I'm new to the hobby and would like to hook up with someone." You might be suprised at the number of people who are willing to help. If you do that, offer to pay for gas and drinks. Pesonally, I like hunting alone, but I'd rather have a friend along. A lot of this hobby is hours of bordom, and having someone to talk to is nice.
As far as my neck of the woods here in NE Texas, I hunt a lot of gravel bars of creeks and rivers. It's a hard way to hunt, but it pays off. Here's kind of a typical look at the stuff I hunt in:
If don't know of any creeks that might contain gravel, google earth is a good place to start. When you find a target creek, drive out and take a look down. If there is gravel, then there is a good chance there are points. Once in the creek, set up a search pattern. A good way to do this is to drag your walking stick, a must in this business, behind you. Walk a straight line, scanning the area just in front of you until you turn around. When you turn around, place the oppisite foot in the foot print you just made, and repeat this procedure. Sometimes the points will be laying flat out, sometimes all you'll see is a tip, or an edge, or a base, ect. Look for worked edges. At first you'll pick everything up, but that'll pass once you find a few points. If in question, bring it home, take a pic, and post it. There are some real experts that will guide you here. As long as you are willing to listen they will help you. One thing. No matter how you hunt, whether fields, digging, or creeks and rivers, take a camera with you. Before I pick up an artifact, especially a point, I take an insitu picture. Remember, you are the first person to see this point in hundreds if not thousands of years. Then document, when where and what type of point it is. And have fun. If your married... will I just hope she's understanding

I hope this helps, and let me know if you have any questions. Raymond