Google+ miracle, how to reproduce?

Hi. Yesterday i made a simple new Google+ account with a photo of an not too pretty girl ( to look more unique) and today i got 300+ people who have me in his circles and just growing (+10 per hour) I shared some trending news (about 8 post from popular news sites) but i haven't see too much activity on them, but the "followers" are growing. I don't really know why, i only followed 100 random people ( and most of them not following back) And i also joined 2 very small community in news category, but didn't shared there anything.

How can it happened? If i will know, i will do the same with my other accounts, but i don't know whats the trick. Anybody have idea? (Sorry for bad english)