We are heading out on the Fantasy for our first cruise in less than 2 weeks! I have autograph books for my kids that we've used at WDW in the past. I've read that we can get certain characters to sign during scheduled meets so we will bring our books to those. My question is, if you happen upon a character while moving around the ship, do they sign? I don't really want to carry the books around all the time but I also don't want to see sad faces on my kids if they miss an opportunity because I'm not prepared.