day two

If anyone from Phi Psi/Phi Delt/Theta Chi reads this, can you guys help me with a question. I was at your houses yesterday and I didn't get a bid at all. I was thinking about going back for the second day in the row to show my interest, but I heard you have to be invited back in order for a chance to get a bid. Otherwise if you just show up you basically won't get one. Are your pledge classes full and I shouldn't bother showing up or should I still show up and hope to get a bid