said 1 year, 2 months ago:
The people who tend to catch my eye on G+ are those who are making themselves most visible, by adding comments to others’ posts, or routinely posting original content (assuming I’ve found and circled them before), etc. I tend to comment far more than I initiate conversation on G+.
I’m always having to remind myself that for many of these people, they’ve been there longer, are more “social” than I am, and their circles are likely much larger than mine, which means their stream flies by even faster (and even mine is sometimes a challenge).
I speculate that the majority of big-name influencers are far more selective in who they circle than you or I might be. If you’re not contributing to the G+ stream with substantive content (at least in some fashion) multiple times a day, you’re not likely to get their attention.
As for the reciprocity of circling… I think anyone who circles another with the belief and understanding that they’ll be circled in return is likely to be disappointed at least a few times. It took a bit of getting used to, but now I’ve really come to appreciate that freedom.