Were I to do it again I’d pick 2–3 topics to master and blog, tweet, guest post, relentlessly. Reuse, rewrite, repost the same essay and commentary dozens of times. Get quoted in press and other media coverage. Follow media coverage looking for potential clients, dig into those clients and master all the public information about those clients.
I didn't do any of that.
On the 0 to 10 scale:
0: "I don't really do X, thanks for thinking of me."
3: "Hey, I don't really do X, but he may need Y. Let him/her know if they need Y they can call me."
5: "Oh, that's neat. Why don't you introduce us, I'd love to meet them. "
8: "Oh, cool, what's their name/email? Can I mention your name and reach out? "
10: "Cool, let's invite them to grab a drink with us after dinner. What neighborhood do they live in so we can go somewhere convenient?"