Just got accepted to Stern, any fellow Sternies here with any advice

Hi I just got accepted to stern and I was wondering if there were any other people from Stern here (current student or past student) that could offer me some advice. I was able to find everything that NYU officially wants you to know but I am looking for the real stuff right now if that makes sense. How is the social life? How are the frats here? I heard you are supposed to network with upper classmen, how did you go about that and is it necessary? These are just a couple questions I have but I am really just looking for any insight you guys could provide me. Also I'm excited to see you next year if you go to Stern. (Also this is undergraduate by the way)