How do you create Advocates for your business?

I was talking to two people last week about a seminar I had just given on the 7 secrets of effective business networking.

One of them said "I agree with everything you said about relationships first, but how do you get someone to be an Advocate for you?"

I didn't get chance to reply as the other one said, "Become an advocate for others first. That's what I did and now I don't have to worry about it!"

Good Networking!
Dave Clarke