Ants on a Log (AKA Tepee Shuffle)
Have everyone line up (on a sturdy log, if you wish, or on a line). Tell them a mysterious force has removed their power to speak. (You may wish to elaborate on this.) Tell them to line up in chronological order of their birthdays without speaking. You may also play this game with everyone's eyes closed. Or, you may wish to have them line up in order of shoe size or alphabetical order by first or last names.