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It's so funny, that adpiucf mentioned saying other things other than "here" during chapter roll call. We always said the name of another chapter, and mine was Epsilon Chi, Longwood College, Farmville, Virginia!
One thing we did after every meeting was Weeds & Violets. We'd be in a circle, and everyone would say something good & something bad that happened that past week - but it was okay to just mention the something good! The idea was to always have more Violets than Weeds, so no one could mention just a Weed.
We also did a Secret Sister - someone would send a little note with something like a candy bar ("You're so sweet!") or something. It was always kept somewhat quiet, but the person who got the giftie was expected to pass a giftie on to someone else within 3 days.
Good luck!