You will need to know the positions on a stage.
Remember, it's from the actor's point of view, not the audience!
C: Center stage.
D: Downstage.
R: Stage right.
L: Stage left.
DR: Downstage right.
DC: Downstage center.
DL: Downstage left.
U: Upstage.
Test Yourself:
Downstage Right
Upstage Left
Center Stage Right
Downstage Centre
Have a go at this Stage Positions Quizlet: