informal

a couple of houses will have pledge classes of 10-15. those houses will have open houses and anyone can come. usually around 50-60 girls come. then they choose which girls they like and invite you to do something else. could be coffee could but another open house type thing. then usually if they like you again then you get a bid. the thing is, you could get bids at all different times so thats what makes it difficult.
a couple of other houses will only ahve room for 5 or less. these houses will most likely just invite girls they already know and won't have an open house. just email the houses when you find out whose participating and theyll tell you what theyre doing! good luck