Each of your subscribers will have a unique link that they can share. They get points when other people subscribe to your news letter or join your email audience via that link. The question is, what do you think, firstly, is the thing t at they're most likely going to want to share at that moment? So it could be an existing article,. It could just as easily be a news letter sign up page. I could be a free chapter from one of your books. There are lots of different things that it could be. But i think all of those, you cover them super supeel, supersstinly.