Hey Chris!
I just know you guys are going to have a blast on friday :)
In answer to tour question about if a GM is always making a move? I would say Yes.... sort of. Sometimes you are just
asking lots of questions and using the answers right? So when you use the answers you are making a move.
You never 'name' your move as you make it as a GM (except maybe in your head as you glance at the list), but sometimes the simple act of scene framing is in actuality a soft move,
revealing an unwelcome truth,
showing signs of doom, or my personal favourite: starting a scene with action! and
Putting them in a spot!
Sage has taken a lot of time to craft the chapter on GMing to a fantastic expose on how run the game, this paragraph in particular sums up the 'when do I make a move?' query.
Hope that helps?
When to Make a Move
You make a move when everyone looks to you to find out what happens. When it's your turn to say something in the conversation you make a move. In particular, you make a soft move: a move that sets up a future move.
Making a soft move just means that you put events in motion, then let the players react. If they don't do anything about it you follow through with the full consequences, making another (harder) move. Showing signs of doom is your most versatile soft move since the doom you portend is a move waiting to happen.
Of course your moves apply when the players undertake something that's not a player move. In that case the players will say something, like "I lay my case before the king, pleading for aid," and look to you to find out what happens. Since they haven't made a move (there's no leverage to make a Parley) you just respond with a soft move of your own as setup by the fiction.
You also make a move when the players give you a golden opportunity. A golden opportunity is any time they ignore a threat or when they fail a roll (6-).