What am I Supposed to Do?

[stockholmjoy]

I went to my first rush event yesterday (a barbecue at a fraternity's house), and have what seems to be a stupid question: what should I actually do to get a bid card? I don't mean "how do I get people to like me". Rather, what am I supposed to be doing at these events when we are socializing? I have a good friend in the fraternity, and he has said he wants me to join. When I went to the barbecue last night I was there for an hour and a half or so. I was with my friend the whole time, and he introduced me to a lot of people. I don't remember most of them and I doubt most remember me (though the rush chair did actually call me by name). After the first half hour or so we started talking to one of his closer friends whom he roomed with last year. I hadn't met him before, but we went go to a smoke cigarette every so often and we got along well. Is making a good impression on a small number of people what I'm supposed to do or was I being antisocial? Should I try to get to know one more person each week? Or should I ask my friend to take me around to a lot of people and just make small talk?

Also, one more question: how hard is it to get a bid card from a fraternity? Will a lot of people who want to join a particular fraternity like me be left without one at the end of the summer? Also, how many events will I go to before they ask me if I want to join (assuming they eventually will)?

(I am rushing other fraternities as well. I just had a question that pertained to one in particular.)