Recipe) Before playing any game, vocalize (or sub-vocalize) the following wish: “I wish this to be used for the benefit of all beings everywhere.”
In the appendices of Any Game Cookbook you’ll find a few notes on the subject of sub-vocalizations. Let me just summarize here: Don’t just think the words, use your voice. It doesn’t matter how loud or how soft. Just make sure you are using your voice.
When you use your voice, you will bring the wish from the domain of idle thought into the realm of active intention.