They do a show, they dance with the kids and the kids can color. But you have to be in the correct place in line. I don't know the exact numbers, but they let, say 30 kids in for this dance and color. Then they let 30 more kids into a "holding" area where they can see all the festivities but don't participate. So the first 30 kids do their coloring and then Flynn and Rapunzel come out and they and the first 30 kids do the dance, then those kids go through the meet and greet line. Then, the other 30 kids go through the meet and greet line. My daughter was the last one to get in with the second group of kids. She's young so didn't care, but I would've been kinda bummed if she was older and saw all that fun but wasn't able to participate. The characters and CMs were still great though, allowing me to bring in my youngest when my oldest was almost at the front of the line, the characters spent alot of time with my girls even though she was last in line. But we will be avoiding this meet and greet in the future just because the lines are sooo long and it moves pretty slow.
I also have to add that Flynn was the ONLY character that made my youngest cry.