Never telling them I don't have time to listen to them, or finishing their sentences because I'm too impatient to wait for them to find the right words.
Always telling them how much I love them and like OP says, how clever they are, how special they are, how they can do anything, how they are beautiful just as they are with hair in matted knots, filthy dirty clothes, covered in mud/sand/grass or whatever else.
Playing the 15th game of monkey bingo for the day because that's what they want to do
Letting them try to do things for themselves, no matter what sort of mess it will make and no matter how nuts it makes me having them "help" me cook, or how much longer it takes than if I was to just do it for them.
Letting them express their opinions and make their own choices, and then supporting that opinion or choice (where possible)