The way out is through.
I've noticed that if I'm hanging out with only one person, I can actually connect with them pretty well. Conversation goes smoothly and there's usually no hint of social anxiety. BUT, if there's 3 or more people I talk less and less 'til I'm just tagging along and keeping to myself the whole time. I hate when I'm out with someone and we run into someone else and the two of them just go off talking and I'm too nervous or socially awkward to join in. This is just with friends though; with strangers it's much worse regardless of how many people. Anyway, just wanted to share and find out if anyone else experiences the same thing.