Exude confidence yet appeal to the most average person. Networking is an enrichment program, not an entitlement program. Too many people feel that under the guise of networking they are to be given leads, referrals, and information that they have not earned. You earn these leads by establishing communication and rapport. Treat people with respect, integrity, and honor.
People enjoy giving leads to others who have a track record and with whom there is a connection.
Establish these connections by meeting, mingling, and communicating. Make it easy to work with you. In other words, be communicative, cooperative, and creative. Your networks are too precious to include people who aren't appropriate, courteous, or competent. Go with your gut.