My social skills were taught to me at an early age by various adults in my life so I know how to act in most situations. I don't think I come off socially awkward but I have anxiety around new people and it only tends to fade once I make some kind of personal connection that breaks the ice. Like Fay I am also kind of hyper aware of the energy around me which will set the tone for how I behave. Sometimes I am really shy when forced into a new situation and I wait for someone to include me. I am bad at speaking up first and I really panic when I am put in a position where I have to talk about myself around people I don't know. Like when I was taking classes.
Even if I have to interact with a group for extended periods of time, I tend to keep my distance from most people in situations I am forced into. It is strange to me how close these people get in a short period and start adding each other on fb or hanging out one on one. IRL many people give me contact information so we can stay in touch but I don't want to form any close bonds since I know once I get through whatever brought us together that I probably will not keep contact.
Edit: Around people I know well, I am kind of the center of attention and feel fine with it. They are good about letting me slip out of the room when I have had enough.