This activity provides a great introduction to the key themes of Psychology and also gently encourages new groups to bond and share. I use it to introduce ideas of research (how scientific is this activity?), therapy (how might therapists use an activity like this?) and also to encourage students to consider notions of individual difference – how everyone has their own interpretations of reality so how do we ever know anything to be true and real? So it also provides a good grounding for theory of knowledge and critical thinking work.