Interactive performing environment establishes direct communication between human and artificial object. Robotic entities are completely independent from each other and free from human control. Their distinct logic and physicality enable to re-act to local conditions. Each robot receives information about its immediate environment from three ultrasonic sensors. Simple rules, programmed in the robot's microprocessor turn such perceptions into a specific response that may include certain movement, emission of sound or light. One can observe the behavior of the robotic entities and try to find patterns in it. A person (or a collective) can get involved in this unprecedented behavior without words and predefined conventions. The communication ultimately happens.