Another important factor in your performance is the positioning of the actors on stage. The director should avoid positioning the actors in profile to the audience. Since so much of the meaning of a line is revealed by facial expressions, it is vital that the audience be able to see at least three-fourths of the face of the actor who is speaking. Actors should also gesture with the arm closest to the back of the stage so that they are less tempted to turn away from the audience. Positioning actors in a straight line across the stage isn't advisable since characters in a line tend to bend forward to see each other and, after all, we rarely see a group of real people standing in a line when speaking to each other.
Characters placed in triangle formations look better on stage and are easily seen by the audience.
The actors should also pay attention to who is speaking. While one actor is talking, others on stage need to be careful not to distract by unnecessary movement. Movement motivated by what is being said is acceptable. For example, actors in a crowd who are listening to a speaker may nod and look at each other to show how they are responding. If a crowd gets so active that the movement of the actors distracts from the lines being spoken, though, then that action is inappropriate.