Gotcha ya! If you've been to a Derren Brown show recently, Derren introduced us all to a new game where the aim is to catch people looking at your a-ok hand guesture. I just caught you all… Comments [Comments] Trackbacks [0] Related Author: Ianforrester Senior firestarter at BBC R&D, emergent technology expert and serial social geek event organiser. View all posts by Ianforrester