1) There are 26 NPC sororities, ergo, there are 26 different membership selection procedures. There might be a sorority who penalizes you for meeting too many members. There might be a sorority who cares about nothing but grades and cuts everyone else. I have no clue. I (and everyone else on here) am only in one and therefore only privvy to the procedures of one.
2) You should have asked your Rho Chi or someone else for a ride to the pref party. There are lots of stories on here about how someone was "meh" about a sorority through rush and then loved them at pref. You missed that chance.
3) I like thinking about airports in Paris.
