Again I'm just posting what we had last year.
Last year I think we had mics set up around the stage to amplify your voice UNLESS you didn't face the audience. Sometimes in skits or announcements someone would turn their head away from the audience while they were talking and it would be hard to hear them.
I do remember some people carrying mics around on stage (the big ones, not the ones that clip on) so I would assume they would have them again if you need them.
