why i'm not rude when i don't speak to you

​So my bestfriend and I (yeah, I said bestfriend) were having a [drunken] conversation about why we don't have friends. Of course. And I asked her what she thought about why I don't seem to have a lot of girlfriends, and she told me without missing a beat that I come off as a bitch a lot of the time.
This got me thinking about some of the things I do that may be taken out of context. The number one thing I do that is "bitchy" is I don't speak unless approached by someone in public. The reason behind this is really all through high school I wasn't that popular, not a lot of people knew who I was. So now as an adult I think that has bled into my personality, or really more so what I think of myself. I assume that just because I recognize you in public, that doesn't mean that you know who I am.

There is a difference between not speaking to someone because you are juat being an ass, and not speaking because you dont want to be weird.
I see people all the time that I've met a few times, but I don't say hey because I don't want you to think I am weird because I know who you are but you don't know who I am. I can't be the only one right?

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