One player is blindfolded and stands in the play area. The other players then stand next to the blindfolded player and when told to move out, they each take ten normal steps, they (can turn if they wish to) away from "it" Once they have all found somewhere to stand. "It" then takes ten steps of their own and tries to tag someone. If they succed, they swap places, otherwise everyone comes back to "it" and the game contines. Players who are not "it", can duck and twist to avoid being tagged but must not move from where they stand.
Source: From the original site.