Well one of my rho chi's was an AXO - except her chapter put a little video clip in their slide show and I look up and go, "hey, that's my rho chi!"
My other rho chi was a Kappa (Though at first I thought she was a ChiO). Going back to the whole rho chi really liking a certain PNM thing - I loved my rho chi, but she did seem to really really get along with one girl in my recruitment group. They would always sit there and talk in between parties and before getting invites. Well after pref parties, we were walking to go pref chapters and my rho chi was talking to this girl who had gone to Kappa and another chapter's pref parties. The girl was weighing the pros and cons of each chapter when I see my rho chi look at her and smile and whisper something in her ear after which the girl was jumping up and down and getting excited. Low and behold, the next day the girl received a bid from and pledged Kappa.

Actually come to think of it, there was another girl in a group that knew our rho chi was a kappa because the rho chi had dated her brother. The girl skipped out on her last party of 1st round (a BIG no-no that will usually result in you being cut from recruitment) because she didn't particularly 'like' the house though she'd never visited it before. Nothing ever happened, and in fact that girl ended up going Kappa as well.