Experiment: Where I end and you begin

This experiment requires a partner.
You will need paper and pens, paints, crayons, or any other easily manageable medium.
The two of you should sit facing one another with the paper between you and the medium you will be working with within reach.
Take a moment to establish contact with your partner and set the timer for ten minutes.
Begin by making a single stroke on the page with your medium of choice.
Your partner will then make the next stroke connecting it to yours.
You will then make another stroke branching from your partner’s.
Continue in this way until the timer sounds.