When the parks open, a lot of people are going straight to rides like Seven Dwarfs Mine Train or Peter Pan's Flight, so it's the perfect time to meet characters.
I headed to Pete's Silly Sideshow (still in Fantasyland) where Minnie and Daisy were on one side and Donald Duck and Goofy were on the other. These lines tend to be a bit longer than some of the others at the park but aren't too bad. I waited about 20 minutes for Minnie and Daisy and less than 10 for Donald and Goofy.
It was just my luck that as soon as I left that area, Chip and Dale were meeting guests so I quickly hopped on line and saw them. They had less than a five-minute wait which was perfect.
On the way out of the circus area, Pooh and Tigger are usually right next to their attraction, The Many Adventures of Winnie the Pooh. However, the line for them tends to be painstakingly long, so I decided to skip over it and come back during a time I know would be less crowded.
I walked around the corner and saw Merida in her little nook. She usually has a pretty long wait too, I'd say over 30 minutes on a good day, but I only had to wait 15.