DH and I have no kids and we love the characters.
Let's see over the past 5 years....
Cruella De Vil - We made the mistake of wearing STRIPES on our pirate costumes (
MNSSHP). She informed us of our fashion faux pas and made it clear that she liked SPOTS!.
Queen Of Hearts - On the Disney Wonder I forgot to bow and she made a motion that was unmistakable..."off with her head!"
Chip and Dale - These two are FLIRTS! Offer them a treat, tell Dale how sweet he is, etc.
Princess Jasmine - Like many men, DH likes Princess Jasmine and Jessica Rabbit. So we find Princess Jasmine while DH is wearing a Jessica Rabbit shirt. Princess Jasmine proceeds to tell my DH that she's prettier than Jessica.
The Queen - Careful of your choice of words. I told her she always was the fairest in all the land. She replied," Was?!" I then told she
IS the fairest. "That's more like it."
Minnie - Like others....comment on her wardrobe, her love of Mickey, why she doesn't have a diamond ring after all these years...

Later ask Mickey why Minnie doesn't have that diamond yet.
Belle - We were are CRT Breakfast a few years ago. My mom asked about the Beast and if he had a flea problem. Belle quickly turned around and laughed for a second, and then came back into character.
Prince John - Tell him he's the rightful king, and he'll agree!
Donald Duck _ I told him he was my favorite, but he didn't believe me wearing a Mickey t shirt, Mickey fanny pack, and carrying a Pal Mickey. I then proceeded to tell him he needs to speak to his boss about his merchandise because I would have preferred to have a "Pal Donald" instead of a Mickey. He got a kick out of that and signed my book "My Pal, Donald Duck #1"
Garden Grill - Mickey, Chip, & Dale. It was our honeymoon and the restaurant was practically empty, so we got a lot of character interaction. We were wearing the Mickey Bride& Groom Ears and got a free cake. Chip & Dale kept fighting over me, Dale proposed and wanted to marry me...Chip wasn't going to stand for it. It was funny. We barely had time to eat our meals due the characters spending so much time with us!
Jessie the Cowgirl - She loved my Pal Mickey and kept squeezing him and laughing at his corny jokes.
Tigger - Loves bouncing of course, so bounce with him!
Meeko - Offer him some food, or he'll eat your autograph book.
Peter Pan - Oh My God....he wouldn't shut up!

Anyhow we decided to swap jokes we've heard from small kids regarding pirates. Like...What kind of movies do pirates like? One rates Arrrr And...Why are they rated R? Because of all the Pirate Booty in them.
Cinderella - I told her how wonderful her breakfast was years ago. She then said "Oh, then we've met before!"
White Rabbit - Asked him about the time and that maybe he should consider getting a timex so he's on time more often.
Tweedle Dee and Dum - Mention how much they look alike!
Suzy and Perla - Tell them they did a wonderful job with Cinderella's dress. Ask the whereabouts of Jaq and Gus Gus.