Pitch It
Before you play you’ll likely be explaining the game to your new players (don’t just spring it on them, that’s not cool). We call that the pitch: it’s explaining why you want to play Dungeon World and why you think they’ll like it.
First and most importantly: put it in your own words. We can’t give you a script because the best way to get people excited about the game is to share your honest excitement. There are, however, some things you might want to touch on.
With first-time roleplayers it’s best to focus on what roleplaying means in Dungeon World. Tell them what they’ll be doing (portraying a character) and what you’ll be doing (portraying the world around them). Mention the general conceit (adventurers and adventure). It’s usually a good idea to mention the role of the rules too, how they’re there to drive the action forward in interesting ways.
With folks who’ve played RPGs before, especially those who’ve played other fantasy adventure games, you can focus more on what makes Dungeon World different from other similar games. Ease-of-play, the way the rules just step in at the right times, and the fast pace are all things that experienced roleplayers often appreciate.
No matter the audience, don’t just pitch Dungeon World, pitch the game you’re going to run. If this is going to be a trip into the city sewers, tell them that right up front. If there’s an evil cult to be stopped that should be part of your description. The interaction between you, the players, and the rules will create all kinds of interesting secrets later on; your pitch should honestly portray the game you intend to run.