I'll comment more than I post. I like my current signal to noise ratio on G+ and I like to try and help keep it that way.
Also, I'm in Australia so I'll probably miss the cool stuff you post outside my 'waking hours'.
If you follow me I'll check that you post mainly in English (a failing on my part... it's all I can read) before following you back.
Also if you follow me and have no posts, and nothing in your profile. I'll not follow you back. Nothing personal I just have no idea who you are and what your interests are and I'd rather err on the side of caution than risk offending you with my idle chatter.
Funny is good, but too many animated GIFs and cat pics in my stream will likely see you migrated slowly out of my circles.
I'm a huge pen and paper RPG gamer (board games too) so circle me if you don't mind someone who posts long winded opinionated comments on your RPG posts. I'll assume you're interested in this unless you tell me otherwise.
Otherwise I post links to PC/console game articles that interest me (usually of the game design odd or interesting persuasion, rather than reviews) let me know if you want in on this circle.
I post less about my industry, UX design, and only to a small circle of co-workers and others. Let me know if you're interested in this.