[CASIGKAP]

Well, out here in CA, proper behavior consists of not drinking & carousing in your letters and notengaging in behaviors that are frowned upon at official functions or exchanges. You basically want to present a good image when you're in the official "sorority" capacity. Other than that, if you're out of school, on vacation, or with family, you can do whatever the hell you want (as long as it's not a felony).