Yeah, I do wish there was something like that at times too.
For the most part I just try to talk with people on the internet as I would with anyone IRL (with respect and all that), but a lot of times It does feel as if talking with people on the internet differs a lot from talking with someone face to face.
One thing I could say doh: try to talk with the people you feel ignore you the most through PMs and they will likely give you an answer in the best way possible.
It can sound tough to do because I've been there and I know how much fear It gives to just randomly go to someone on PMs and ask them "hey, do you find anything bad with the way I behave? I would like to improve", but believe me when I say a lot of people here will likely welcome you and give you a bright and positive answer.