I was in a sorority group for high schoolers called Xinos, under the advising of the National Sorority of Phi Delta Kappa: A national teaching sorority. There was a group for guys too called Kudos. We actually did some sort of initiation process, and then after 'crossing'
had regular meetings, did TONS of community service, had a debuntante-esque ball and went to a regional conference with other Xinos & Kudos in the Midwest.
Looking back, it was similar to collegiate greekdom in those aspects.
Sidenote: The Xinos hand sign was an upside down triangle.....*nervous laugh* the Kudos did a right side up triangle....not as crisp but very similar to...yeah. *nervous laugh*
LOL.