There's one simple thing I'd like to cover in this post - stage directions. Since every show has a different stage setup, when we're building the stage we need to talk about where things like drum risers or keyboards or lights or guitar players go.
I've met plenty of people on shows who resort to the old "put it over there, like, in the back of the stage", accompanied by pointing. Now, this may get them by on some stages, but it's hard to take them seriously when they can't communicate with basic stage terms. It's just way easier if everyone's on the same page and speaking the same language. So, let's just run over the four fundamental directions:
Stage Left - If you're on stage facing the audience, this is on your left:
Stage Right - If you're on stage facing the audience, this is on your right:
Up Stage - If you're on stage facing the audience, Up is behind you.
Down Stage - If you're on stage facing the audience, Down is in front of you.
Like I said, you can probably get by with just pointing, but I usually think it's better to know the terms that professionals use.