Find a play area with some rocks, trees or shrubs that can be used as cover. Blindfold one player, they are the predator and stand in a designated central spot. They then count to 15 while the other students, as prey, attempt to hide while keeping the predator in sight. The predator removes their blindfold and looks for the hidden prey. The predator can squat or stand on tip toes, but must not moving from the designated spot. Tell the predator to identify any spotted prey; that prey must then come out of hiding. If the predator cannot find all of the prey, they are re-blindfolded and count to 15 while the unfound prey moves closer. The winner is the last person found, they then become the preditor.
Source: From the original site.