There are thousands upon thousands of articles and books on the hows and whys of networking. But at the end of the day, there are just three simple things that you need to remember:
1. It's not about you. The second you get into a long monologue about what you do, you run the risk of putting people to sleep. No one cares what you do. If they care about anything, it's how what you're offering might affect them and/or the people they might introduce you to. Go on and on about the ins and outs of your business and you are going to turn people off.
2. Follow up. It's the only thing that will provide you with ROI for your networking efforts. Simply put, if you don't take the time to develop robust relationships, you can kiss your introductions and referrals goodbye. Nothing happens until you have multiple conversations and/or meetings with your potential referral sources. You need to develop trust, and trust takes time.