1) The cat (from neighbor across the street), he is like outside 3am !!!
He meow-ed at the back of my house, and it was raining outside.
Do some cat wonders around at night like that ? (is some cat have owl's sleep pattern instead? )

2) Sometimes he sleep on the ground on one side, and then he change side, and change again. He is trying to say something to me, or he is just trying to scratch his back ?

3) I think he is adult cat, and is not as playful at younger cats?

4) And different cats like to play differently just like human?