Every eye in the room is glued to the little pink head. The baby can barely keep its eyes open, but it pokes out its tongue, time after time. The screaming of another child out of shot deters no-one: we’re all transfixed. The clip ends. It was at the start that the Dad, out of shot, had explained he would poke his tongue out at his child and observe the response. The baby was only an hour old. Facilitator Nigel now explains that we’re hardwired to respond to other people, even from such a young age, which is why the baby responded as it did. As we move on, we’re set an exercise: work in a group of five so that we have a square each, all the same size. The one catch: we’re not allowed to communicate. I found this to be a generally enjoyable task: everybody in my own group moved their own pieces into the centre where we constructed them together. In no time at all, we were pulling them back towards us, all perfectly the same size. I noted that one person took charge from the star...