Hi Lisa... excellent question. Lots of good answers already given.
I am an agent and property manager here in Cleveland area. I worked at a couple of different brokerages until I settled in at Remax Trinity in Brecksville OH. Some companies have more structured training than others, and if you might want to take a look around and see who has a good hands-on training program in your area. In my case, I focused on areas that I wanted to personally invest in. I like the good school district communities, and places where I did not have to worry so much about my tools getting stolen. I selected areas that were a short drive from my residence because I felt I could service people better if I could get there in 10 minutes. In these areas, I go to all the Broker open houses, meet with other agents, visit the weekend open houses, and also spend some ad bucks promoting my name on Z, for example for a couple of the zip codes I am focusing on.
I personally believe that one can achieve success in any area if you immerse yourself in it. So this also means scour the MLS for listings and solds in your selected areas. As some others suggested, start with a small area. Join local chambers, and do lots of networking in your well defined target area. The idea is that in a short amount of time people will start thinking of you as an expert in that area. Offer to do some open houses for your fellow realtors in your target area. This will help you collect some buyers who are likely interested in the same neighborhoods. Check out the county websites and get the data on every foreclosure in your target area over the past year or so. If its too much to remember, then your area might be too big. When we do all of these things, we learn lots of stuff to talk about... not only the housing stock, but also parks, and community events, municipal issues, politics, school issues, housing codes, restaurants, etc.
Good luck.