Sorry for the tedious question, but I'm a bit new around here! Is it just an act of friendliness, like on fb? I feel like such an idiot not knowing by now!
Most Helpful Girl
There are no set rules per se. You can follow anyone that you like for whatever reason: they're funny, they're helpful, and such. People will follow you for the same reason. While it may be nice to follow someone that follows you, you do not have to. I try to, but, based on some users' posts, I don't always follow back if the user seems to only talk about sexual topics for example.1