The first workshop consists of inventing a coded sign language, similar to sign language, to deliver messages to the aliens. Each child thinks of a type of message (positive, negative or interrogative) that they would like to send. On large sheets of paper laid out on the floor, they lie down in the posture they have chosen according to the message or question sent to the aliens. Alone or with the help of a classmate, they trace the outline of their hands and arms.

The second workshop is an exercise in projection: if Man were to leave Earth to settle on a distant planet, a new society would have to be imagined. How would this new ideal world be organized?
Two orange gym balls represent imaginary planets. The kids choose together how to invent a new model of life with abstract cut-out shapes to stick on the ball. Each shape represents a code, an unknown life form, signs. What already exists on this planet? What are its characteristics? What is missing? Everything has to be invented. The kids work together to choose the abstract shapes to prepare this future extraterrestrial “life”.