Welcome to the group. I can understand that. When I'm with a group of people, my interaction is limited to one liners. When I'm with someone one-on-one in a quiet and more private environment, I'm more conversant. I mentioned in another post that when I see two people who just met each other locked in an animated ongoing conversation at a social gathering I can't help but wonder WTF they are talking about. They just met fer cryin out loud.

An improv group sounds like fun!

I tend to be a social spectator, even thought I loathe being a spectator in pretty much everything else. In social settings, unless it's online or geared towards one of my specific interests, I tend to speak pretty much only when approached and spoken to. Every once in a while I'll come out of my shell a little bit before retreating back in. I don't have social anxiety; just don't always feel I have anything to add