How To Make Them Talk About You.
It’s simple and yet seemingly oh so difficult. Give people something that makes their life richer, that does this simply and intuitively and, most importantly of all, does it in a way that doesn’t frustrate.
Avoid feature creep, avoid taking up too much of their time (that scarcest of resources) and avoid causing irritation.
Do that and you find that people are hard-wired to talk about this thing that gives them pleasure.