From Nordic Larp Wiki
A player holds a monologue which is partly or completely outside of the fictions space and time. This can either interrupt all other play or go on alongside. The monologue is a tool to give other players insight into the speaking characters story and create game openings between them. It has the added benefit of making the speaking player feel like a main protagonist and give them closure to their own story.
The player marks a square in the air, rather like a TV-screen around her face, does the monologue or meta comment, and then closes the box with the same gesture. This technique has at least once been mistaken for a way to give off game messages, but that is not its purpose.
Ping the glass
Every player has a glass and something to ping it with. (A pen, a spoon, whatever is convenient.) When a glass is pinged, the owner of the glass gives an inner monologue, and marks the end of it by taking a sip from the glass. This technique can be used either for players to elicit monologues from others, or just as a marker for the monologue itself. It was first used in New Voices in Art in 2007.
The Monologue as a tool for the Gamemaster
The type of Monologue that is often used during Slow take-off and Slow Landing. All the players stop their talking (most often also their activities) going into a neutral, pausemode, optionally closing their eyes. A Narrator (or Game Master) tells a fragment of text verbally that can be used to direct the story or the situation into a new stage. This is also called a Narrative Voice Over and is a kind of cut scene.
Asking for a monologue
Two players alternate between monologueing for each other in short bursts. One player expresses their inner monologue until the second player takes over, often picking up on a thought or a word from the first. It can be a powerful tool for exploring character relationships, finding common ground and/or potential conflicts.
Examples and Referances
This is very much in use in Jeepformgames like Doubt,Growing Up,The Journey. It gives a feeling of a Brechtian theater where the narrator not only talks to the audience, but sort of acts out like a director at stage. Refer to plays of the type as The Caucasian Chalk Circle (http://en.wikipedia.org/wiki/The_Caucasian_Chalk_Circle).