Help me hivemind! I'm a little freaked out because tomorrow I have an interview with the graduate program that I really want to attend. I think I can do it but I'm worried I will say something stupid and will get disqualified. They told me that it's an "informal interview," not even sure WTF that means! And to top it all off I have PMS so I am freaking out about normal things. Having this one come along right now is less than optimal. I'm fairly sarcastic and tone it down for interviews, but is it okay to make like one or two jokes that are really innocuous? What do y'all think is the best way to act in an interview?