Alias: Accept the current state and extend it forward, rather than resisting or undoing it.
"Positive" doesn't mean happy. A scene about a divorce can be great improv. This is mathematical positivity — addition, not subtraction. It's the famous "Yes, And" understood as a systems command rather than a social nicety.
In practice, this is a felt shift — the moment your partner establishes something, you let it land in your body before your mind evaluates it. Acceptance has a physical signature: your posture adjusts, your breathing changes, your attention moves toward your partner rather than inward. When acceptance fails, you can usually feel it as tension — the body bracing against an offer it doesn't want to receive. That tension is the signal to override. People block not because they fail to process data but because acceptance is painful — accepting "you killed my dog" or "you're my father and you abandoned me" requires vulnerability. Blocking is almost always a fear response, which is why Be Brave is a prerequisite.
The underlying architecture: build on what exists and preserve shared state. When you reject your partner's offer — even subtly — the shared reality forks. Two incompatible worlds now compete for the audience's belief, and neither wins.
The gun example from Tina Fey (Bossypants): "Freeze, I have a gun." / "That's not a gun, that's your finger." — fracture. Versus: "The gun I gave you for Christmas! You bastard!" — state preserved, state extended, relationship and emotion established in a single line.
Acceptance also has amplitude. You can accept reluctantly (the offer is real but you resist its implications), fully (you receive and extend with energy), or in Johnstone's term, overaccept — take a small offer and treat it as enormous. Someone says "it's Tuesday" and you panic because that's when your surgery is scheduled. All three are positive. What matters is that the shared state is preserved.
Critical clarification: "Yes, And" means accepting the reality, not the command. "Jump off this cliff" can be met with "It's a high cliff... I'm too scared to jump." You accepted the physics. You kept your agency. That's still yes-and. This also applies to your own offers — the word that escaped your mouth, the position you stumbled into. Accept what you already did rather than trying to backtrack.
Mick Napier offers an important counter-frame: "Yes, And" as a first principle can produce weak, passive improvisation if the performer has nothing of their own to bring. His alternative: enter with a strong personal commitment, and acceptance becomes natural because you're grounded enough to receive anything. Acceptance without investment is compliance. Acceptance with investment is collaboration.
The one limit: acceptance serves the ensemble, not the individual. If an offer endangers the performer (not the character), or if "accepting" means surrendering all agency to a partner who is bulldozing, the principle bends. Be positive is a commitment to shared reality, not a command to be passive.
Keith Johnstone: "Those who say yes are rewarded by the adventures they have." If you reject the input, the shared reality forks — and the adventure dies.