I feel like a child doing it. Like a child trapped in some sort of place where I'm not supposed to exist. Where it's full of classy, elegant, well mannered adults, and all I have is myself to entertain me. It's quite dramatic, but it's true
All of the above except speaking really fast. If for some reason I have to speak in front of a group of people I tend to blush a lot and get hot flashes and stumble over my words or forget what I was going to say. I have a lot of the symptoms for social anxiety but I've never been diagnosed by a doctor.
Quiet when I'm bored or sometimes angry. I mumble and stumble when I'm nervous and I blush and walk away when I'm embarrassed. And now I sing when I'm in a bad mood. . .? When I'm happy, I'm me, laughing, smiling, etc.