Круг Таро, Рейки и Магии

An adult education class is preparing a discussion about online face classification. The exercise should teach people to question a label rather than compete for a particular result. A topic reference I have saved for discussion is what is my face shape to introduce the subject. That inclusion would not imply that its results are accurate. Before looking at a label, learners could list the proportions they think a method uses. Next, we could discuss what information a single photograph leaves uncertain or obscures. I would avoid requiring personal uploads and use written example descriptions for the exercise. Each group could explain which evidence would change its initial interpretation. We could also compare two written descriptions of the same outline and ask whether their labels mean the same thing. This would make the assumptions available for discussion without requiring a supposedly correct personal result. Which discussion prompts would help learners examine assumptions without judging their own looks?