I am amazed by the many videos...
We have a cat and our cat always calls my mother " Maow-ma " and replies to my meows when I try communicating with him for a sort of joke.
I actually tried for a joke to make him say my name, that is similar to Maow-ma word XD but he just uses a variant of that when he sees me.
He also learnt to jump to be able to open a door that is closed because he saw us.
When I'm going to sleep, he comes near me and touches my nose and face with his paw, and if I get my finger near him he tries to grab it with his
claws to bring my finger to his mouth.
He gets nervous when, for example, I discuss angrily with my brother about something and we often stop the discussion because he might attack us...
He also gets nervous when I walk near him with bare feet.