Never be afraid to take inspiration from the Internet.
As for my dynamic, Daddy and i do basically all of it, except for using a litter box.
Meowing, purring if you can, if not make a sound that is similar that you and your partner knows is you purring , hissing, growling, panting.
Not all kittens dress up, some just assume the character, or only dress up during specified times of play.