The verbal and non-verbal communication between doubles partners during play. Communication costs nothing but its absence costs points. Simple calls like "go," "it's good," "yours," and "mine" can prevent confusion and improve positioning.
After your partner hits a third shot that's effective, call "go" or "it's good" to signal they should move forward. Call "mine" or "yours" on ambiguous balls. When a ball is going out, call "no" or "out" early and clearly. When you're pulled off court, communicate your recovery status to your partner. Communication should be brief, clear, and consistent. Don't over-communicate — a few key words at the right moments is better than constant chatter.
"Go," "mine," "stay" — single words that prevent confusion costing 2-4 points per game. Yet the vast majority of recreational players are completely silent on court. Morgan Evans: "Communication costs nothing and it's a great habit." The absence of communication isn't neutral — it actively loses points through middle ball confusion, partner blindsides, and transition zone miscommunication.