The perfect screenplay is a silent movie.
Seeing the story transpire firsthand makes us witnesses. We participate. Instead of hearing the characters relate how they think and feel about what happened, we witness what happened and we relate how they think and feel for them. We tell their story for them, in our minds and to each other. When a character talks, she takes the witness stand, and we nod out in the spectator seats. When we watch her act, we take the witness stand, sitting upright and paying attention to detail and thinking carefully about what we know of her thoughts and feelings so we can get the story right.
When the entire story happens in the minds of the audience — with the audience as witness — audience becomes storyteller. We care more, we’re invested more, we believe more what we see with our own eyes. Because we’re in the witness stand now. We’re the real stars of the show now — we’re telling the story.
Whenever you can, let your audience tell the story. Give us all the information we need, and let us piece it together. Then it’ll be ours. You have no greater goal.