Well, you could present yourself for grooming. lol
Seriously though, a rabbit will not understand that you are displeased. They do understand that “no” means they shouldn’t do X (at least not while you are looking). Believe me, Wooly knows what “no” means. It is okay to tell your bun no when she is doing something you don’t like and then redirect her to something else. Like Pam suggested, if you see her getting ready to pee then firmly say no and then put her in a litter box. Praise her when she goes in the box. Sometimes treats are the only kind of praise rabbits understand, but I do tell Wooly he is a good boy when he does something I want him to do. At night I will tell him it’s bedtime. He gets in the cage and Leopold usually follows. They get their bedtime pellets. I tell Wooly he’s a good boy as he starts munching on the pellets. I don’t know how much good it does, but I do it anyway.