Description, detail, and lore are widely considered cornerstones of the roleplaying games medium. They tell only part of the tale, however. Certainly, description detail and lore all have their place in the verbal-literary tradition on which roleplaying games draw. What ultimately defines a game, however, is the opportunity for players to make choices and affect the outcomes of the game environment. Without interaction, these details are simply words, diorama designs that assume no life of their own. The players’ interaction with these descriptors is what defines a roleplaying game as a game.
To this end, players inherently seek opportunities for action, inputs by which their choices determine, define, or react to the game’s events at any given time.
As a GM, it’s part of your job to draw attention to the opportunities available. You don’t have to — in fact, you probably shouldn’t — exhaustively list what the players can do, but suggesting a course of action has a variety of values. It lets the players know that the game state is waiting on them to interact with it, that it’s time to declare an action and “play.” It engenders in players a state of creative thought. And it provides a frame of reference, or an anchor with which to compare their own actions.
Describing the Call to Action
Given the verbal-literary tradition of roleplaying games, word choice when drawing attention to these opportunities is significant. Consider the differences in the calls to action in the following examples:
Each are viable prompts to act, but each frames the potential opportunities for action differently. Some leave the full breadth of action available to the players, informing them only that the gamemaster seeks their input. Others suggest possible courses of action, and might even be interpreted as subtle clues.
As the GM, your presentation of the game world by definition limits how the players can react to it. After all, they can’t know what you don’t tell them. Each of your words and phrases discloses the presence of a “moving part” that players may attempt to exert control over or otherwise interact with. Choose your words carefully, as they tell the players not only what they experience, but potentially what actions might be relevant to those events in response.
Importantly, as a GM, you don’t want to mislead your players. Avoid prompting them with opportunities for action that would have negative outcomes (or at least suggest that their outcomes might be negative, as with a quandary in which the players much choose between lesser evils). A GM who bait-and-switches her players with misleading negative suggestions soon loses the trust of those players.
Read Player Cues

Illustration by Steve Prescott
The gameplay experience shouldn’t be a one-way flow from gamemaster to players. A good GM reads his players’ responses and adjusts the game to be a better balance of challenges and player desires. That’s not to say a good GM hands the players everything they desire on their terms. Rather, customizing a pre-written adventure or scratch-building one to offer the sorts of opportunities for action the players want to undertake results in more engaged players.
Much of this involves reading your players. For example, when a player asks, “Can we sail around the cliffs?” he may simply be trying to solve a given encounter with the available information. But it’s possible that he’s also saying, “I would like more sailing-oriented opportunities for action in the game.” Reviewing character sheets and skill specializations can provide more insight here. A character who has five dots in boat piloting and who’s asking “Can we sail around it?” is telling you, in the language of the game structures, that he wants to do some goddamned sailing. Satisfying this desire may be as simple as reskinning a travel interlude or as substantial as retooling entire encounters to involve sailing instead of, say, overland wilderness survival.
This is one of the toughest parts of GMing, because it involves not only reading these verbal and nonverbal cues, but also challenge design and balancing the results of that challenge design to a degree that the player ensemble finds engaging. If your players’ eyes are glazing over, you’ve got some work to do, but as the example above illustrates, you may have some work to do even if they haven’t checked out. In the latter case, you’re focused on increasing engagement. (If they’re zoning out entirely, you’re not engaging them at all.)
Spotlighting Relatedness
In campaign or chronicle play, the players’ actions in previous session often open new avenues to them. A hostage rescued in session three becomes a valuable contact in session seven. A sensitive document recovered from the antagonists later turns those antagonists into surprise allies. A trivial favor granted to a powerful vampire later becomes the boon that ensures the coterie’s invitation to Elysium. The barkeep buys the PCs a round and tells them, “Thanks for keeping us safe, dragonslayers.”
All of these examples are chances for players to relive their success moments from earlier in the campaign. Not only are they rewarding in this sense, but they’re empowering going forward — success paves the way toward more success.
Indeed, relatedness need not only spotlight success. Narrative progression may turn a past failure into a new opportunity for justice — or vengeance. One of the keen properties of narrative is that a “failure” in the terms of the story might actually be beneficial in terms of game systems, by opening new plot threads to explore or motivations to entertain. Destroying the wizard’s tower in session one only to be dealt a drubbing by the wizard in session three sets the stage for a showdown in session five.

Illustration by Moebius
Call these accomplishments out. Give the players time to exult in them. Let their characters cheer each other (or commiserate with each other), and in so doing, grant the players a moment to reflect on the social activity they shared at the time. These moments provide valuable narrative context, and they renew players’ engagement in their current courses of action.