PM her
I agree, it's very exciting when initiated sisters recognize you with signs and symbols! Without "revealing" anything, perhaps we can all share stories of how we have met sisters from other chapters.
One of my favorite stories is about an older lady in our alumnae association in LA. She had a very close friend--- they were neighbors for years, raised their kids together, etc., and they never once suspected.... until one day, one of the women came outside wearing an ADPi sweatshirt and her neighbor gasped, "I'm an ADPi, too!"
I was driving in Orlando one day and someone must have noticed the ADPi sticker on my car, b/c all of a sudden a lady pulled up alongside me in an SUV and was honking and waving like crazy, and then gave me our recognition sign!
A local UCF tradition, too, is to honk three times whenever you see another ADPi sister.