After choosing one of the posters, you will have to create a VOKI to explain your chosen workshop rule to your classmates. You can write the message or (much better) record your voice (of course, in English).
To create a Voki account (and an email account, if you haven't got one), please, follow the instructions given in class to preserve your anonymity. I will know who you are.
When the Voki is done, please, send the URL (get the Voki link-copy-paste) using a comment in this post, my email or using the "Contact with the teacher" page.