It seemed to me at the 00:47 mark, the bird called its owner a...um...bad word. (but it could just be my human side reacting to the owner saying “I beg your pardon?” after the bird said it!)
It didn’t seem like it was conversing, as much as it was saying whatever it wanted, and its owner was just adjusting her side of the conversation.
Still pretty impressive vocabulary and vocalizations, though.
A few years back, I sat next to the woman who owned the famous African Grey parrot “Alex” who was the subject of her research for thirty years and wrote a book “Alex and Me” about it.
I asked her what it was like, and she said sometimes, it was like having a petulant, willful, adolescent!
The woman talking to Riley is a retired school teacher and she is Filipino. She says in other videos that Riley does talk bad in Filipino/Tagalog. You mention African Gray Parrot I believe is the most intelligent of parrots. Riley has to be in another place in there home because he is loud and annoying. Thanks for commenting.