Hmmz, maybe start without a cam and once you're comfortable with that you can advance?
It's a bit weird to talk too, especially if there's no active chatters but just in case anyone's watching you gotta make it a habit to try and talk as much as possible. :P
I'd say start slow and don't think too much about it, just talk about your thoughts throughout the game. ^^
Yeah, that's also an awkward thing. To just talk while no one is watching or there are 2-3 guys who are not even chatting haha. Maybe I will try again someday! Thanks for the encouraging words :D