Start with the story, not the floor plan

It is tempting, especially on a cold Tuesday in a village hall with a cast of twelve and five weeks until opening night, to arrive at the first blocking rehearsal with a diagram. Every entrance marked, every cross pencilled in, every chair placed to the centimetre. It feels efficient. It often is efficient. But it can also freeze a scene before anyone has discovered what it is really about.

Before you place a single item of furniture, ask what the scene needs to do. Who is winning? Who is hiding something? Where does the power shift? A scene in which a daughter finally tells her mother the truth wants different geography from one in which two old friends are carefully avoiding a subject. Blocking that ignores those currents will look tidy and feel lifeless.

So begin with a question rather than a position: what must the audience see happen in this scene? The answer might be "the moment she stops apologising". Once you know that, the staging has a job to do — and a way to prove itself wrong.

Give actors room to breathe

Amateur casts tend to default to two modes: standing a full six feet apart as though waiting for a bus, or huddled together as if sharing a hymn book. Real relationships live in the space between. Distance is one of your most powerful tools, and it costs nothing but nerve.

• Close in for intimacy, threat, conspiracy or comfort — but be honest about which. The same distance can read as tenderness or menace depending on the actors' faces and stillness.
• Widen out for avoidance, loss of power, or the brittle aftermath of an argument. A character who takes one deliberate step back can say more than a page of dialogue.
• Turn away sparingly. A character who speaks with their back to another is powerful precisely because it is unusual. Use it every scene and the audience stops noticing.

Try this in rehearsal: play the scene with the two actors at opposite ends of the room, then almost nose to nose. Neither extreme will be right, but the difference tells you where the truthful version sits. Actors also need literal room to breathe — a cramped corner forces shallow, rushed playing, and nobody wants an elbow in the ribs during the emotional climax.

Block in beats, not in lines

Beginners often block line by line, which produces acting that looks like a satnav giving directions. Instead, divide the scene into beats: the moments where the emotional temperature changes. A beat might be when one character stops asking and starts accusing, or when a joke lands badly and the air changes.

Block the transitions, not the dialogue. If you say "cross to the window when you decide to leave", the actor has something to play. If you say "cross on line fourteen", they have a bus timetable. Most scenes will contain four to eight beats; anything more and the actors are being micromanaged, anything fewer and they will drift.

A useful rehearsal exercise is to run the scene with no words at all. If the physical story still makes sense — the retreat, the advance, the turning away, the final stillness — your blocking is doing its job. If it collapses into wandering, the geography is decoration rather than structure.

Let the actors move first

Before you impose anything, set the scene up loosely and ask the cast to play it, telling them to move wherever the impulse takes them. Watch their instincts. Some of what they find will be nonsense; some will be far better than anything you had planned, because it grew from the text rather than being laid on top of it.

Then refine. Keep what is truthful, question what is habitual, and gently redirect the rest. Phrases such as "try staying where you are for that bit" or "what happens if you don't go to her?" invite exploration rather than obedience. An actor who has discovered a position will remember it and defend it; an actor who has been told where to stand will forget it by Thursday.

Lock it in — but only when it earns its place

At some point you must fix things. Technical rehearsals demand consistency, sightlines matter, and a set that shifts underfoot is nobody's friend. So decide which moments are genuinely fixed and which can stay flexible. A good rule of thumb:

• Lock anything that affects other actors, lighting states, or entrances and exits.
• Lock the key image in each scene — the moment the audience should remember.
• Leave small business, hand props and inner adjustments free for the actor to keep fresh.

Write the blocking down, and share it. In amateur companies people miss rehearsals for entirely reasonable reasons — shifts, children, a car that will not start — and a clear, kind record of where things happen saves everyone a painful re-rehearsal later.

The honesty check

Near the end of the process, watch a run without stopping. Ask yourself one question: do I believe these people are in the same room, wanting things from each other? If a position feels staged rather than lived, change it. If two actors are too far apart to touch when the script demands contact, move them. If someone is masking a fellow performer for the sake of a prettier picture, move them back.

Good staging is invisible. The audience should never notice your blocking — only the story it was built to serve. Trust the text, trust your actors, and keep adjusting until the room feels honest.