[pearlbubbles]

^We played a similar game to "I love my Tri Delta sis" at the camp I worked at this summer. We used one of our shoes to mark our original place in the circle, but squares on the floor would probably work too.

And yup, it's people matching the original statement that switch places. It doesn't have to be a physical description, i.e. has brown hair, but could be a personality description, such as "is from New York" or "is their first time at camp." (But obviously as applicable to the sorority.)