That is cute. However, why is he in a cage?

How long have you had him? Do you mean crate?
My Suzi also rolls over on her back . She loves a belly rub. Suzi follows me everywhere too. AND is a kisser ! She will kiss my whole face, ears , forehead, all the time . She puts her paws on my face and gives sweet kissess.
My Suzi is the most incredible, loving puppy to everybody. I absolutely love her with all my heart.