Well, the AW rulebooks says "If you do it, you do it, so make with the dice!" (I'm going from memory, so that is probably a tight paraphrase rather than a perfect quote.)
That is, if you declare an action that constitutes the fictional trigger for a move, then the dice have to be rolled and the participants at the table have to apply the rules associated with the move in question.
The contrast is with "say 'yes' or roll the dice" (which is found in DitV and Burning Wheel, among other reasonably well-known RPGs), or with "say 'yes', say 'no', or roll the dice" which is found in D&D 5e and many other trad-ish RPGs.