The first time I ever sang in front of a crowd of people was, like, 10,000 people in Japan at a skating exhibition.
Audiences of critical thinkers are my favorite kinds of audiences. There are jokes I tell in the show that don't get laughs unless I am in front of an audience of critical thinkers. Put me in front of a crowd of science teachers or astronauts! The guileless aren't our audience - it's the critical thinkers we love.
As kickers, it's all about being able to block out the crowd noise, being able to block out certain aspects of the game, and just do your job no matter what the circumstances are.
I esteem it the crowning mercy of my life that not only the chief ends I contemplated on becoming a missionary are attained, but I am allowed to see competent, faithful, and affectionate successors actively engaged in the work.
I've performed in Japan before, as well as many other non-English speaking countries. I find you really just have to be a bit more animated than usual. Call-and-response routines work well, if they are simple. Otherwise, I just dance around like a circus monkey and hope the crowd feels it.