1. Yes. I know that with my cat, a straight up tail and ears that face forward mean she is happy. If they are flat back against her head, it means she is angry.
If she is lying on her back, that means she is content.
2. Yes, generally. I know when she want something and just wants to talk
3. Diva's personality is drama queen. She likes the spotlight, and to be the center of attention.
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One day you dumb, brainy smarties will look upon us and beg for mercy...and we will consider it. -Peter Griffin