14. Belly in the air
If the cat approaches and shows you its belly, putting itself on its back, it is because it trusts you: in fact, for cats the belly is the most vulnerable part of the body.
15. Come back home when you leave
This point applies to cats that go out during the day through their little door: the fact that they come home at night is because they miss their owners. If they didn’t care, they would be quietly outside.