When Peter and I took the Story Time class at the Beverly Hills Library, one of the songs we learned was, "When cows wake-up in the morning, they always say 'Good Day'. 'Moooo, Moooo!' That's how cows say 'Good Day'." We sing it all the time now with all of the animals in our house, including Myshka, even though I'm pretty sure "Good Day" is not what she has in mind when she sees Peter.
This morning, we were singing the song and Peter crawled over to his rocking cow toy and pulled himself up and onto it. Yay, Peter!