To be honest, I'm just browsing through Steemit, read blog post titles, open some, possibly upvote and comment if I feel then need and then I look at the other blog posts from the same person. If I like the rest of the titles I follow him. Once I follow someone, his posts pop up in my feed and if I find more posts of him worth reading and commenting I start assuming the person as worth having him in my internal Steemit circle.

So once I had the idea to write such type of blog posts, the first people I selected have passed the process I've described above.