We realized a while ago that Nora actually thanks us when she is happy that we did something for her. She will come over and rub against our legs and make a specific meow, and she doesn't really rub against our legs any other time. It's kind of funny, actually. Like tonight, I couldn't sleep so I decided to do the dishes and clean the kitchen. I swept the floor, and the mat that I keep her food and water bowls on was dirty and her water bowl hadn't been cleaned in a few days, so I washed both of them. Once I put them both back down, she went over and investigated. As soon as she saw them, she ran over and rubbed against my leg and did her meow. At least I got some appreciation for my job. LOL I love my funny girl!