Be my fan

The players walk through the room and play rock-paper-scissors with the first person they meet. Whoever loses becomes a fan of the winner, i. e. he or she stands behind the others and cheers him on. These teams continue to walk together until they meet the next person. The first two play rock-paper-scissors, the losers become fans of the winners again and line up at the back - so long play on until they all form a big line.