Yes, basically we had to visit the houses within the 6 hour period and from that they decided who they were giving bids to because this was informal recruitment.
I imagine many houses were very picky in the bids they gave out in the first round, probably only giving them out to women who were already friends of in-house sisters and such. Given that the bidding period continues for a few more weeks, my guess is that houses will reach out to PNMs they are interested in getting to know better and will give out bids more gradually. I wouldn't worry about not getting a call that first night if all you had was a small window in which to visit each and every participating house!
redlady2 That's a very good point and makes me feel a little bit better! I know that more bids will be given out over these couple of weeks as girls decline them, especially if a girl gets more than one bid so that still keeps me hopeful!
Like I said before this definitely gets me excited for fall though if I don't get a bid now!