1,2,3, where are you?

Today we learnt the game '1,2,3, where are you?' The finder had to count to 30 while everyone else ran off to hide. Then the finder shouted out "1,2,3, where are you?" And everyone had to shout back "1,2,3, I'm over here!", which gave the finder clues as to where to start searching. Once someone was  found, they helped the finder to search, every so often calling out "1,2,3, where are you?" To work out where abouts the last of the hiders were.