All players form a line, except for the one who has a special task. He/she has to look attentively at all participants and to secretly choose a visual attribute that applies to some of the participants (e.g. wearing glasses, having short hair, wearing a black top, etc.). Then, he/she has to go to each of the players and to say aloud if he/she has the respective attribute or not, using only YES/NO. The persons who are identified as possessing the attribute have to form another line facing the first one, so each participant can see everybody else. The player who first guesses the attribute on which the selection process was based becomes the new leader.