Hi there
We were asked to be in the parade last year. Our group actually split up for a little bit and DH and I were walking together into one of the shops and 2 Disney cast members approached us with a clipboard-asking us questions about the size of our group. There was 6 of us, 4 adults and 2 kids, anyway, we answered their questions and they then just asked us if we would like to be in the afternoon's parade! This was only about 45 minutes before the parade was to begin, and boy did we have to hustle to get everyone to the meeting spot in time. You could possibly keep your eyes open for people with clipboards, and maybe talk about how cool it would be to be in the parade-wink, wink. and hope they pick you. Good luck!