Care for some punch? - The chill pre-cursors to next semester's Panhellenic Formal Recruitment -- sorority 'Open Houses' -- are taking place this weekend. SDT, Theta, Alpha Phi, SK and Zeta (at AXO) will be open for girl flirt on Saturday; AXO, ChiO and TriDelt on Sunday. Freshman 'women:' go to upenn.mycampusdirector.com to register.