[ Interesting! ]
Don’t listen too closely to what you say in conversation. Or maybe, do, but don’t be surprised by some of the inane things that are uttered.
I’ve become aware that I say “interesting!” all the time. To everything. “My dog’s going to the vet today.” “Oh, interesting!”. No, not really, but I say it anyway.
The other overused one I hear is “…and that kind of thing”. Trailing off the conversation with “…and that kind of thing” is extraneous, and a little lazy.
Like writing, speaking succinctly has its advantages. But do make it interesting, and that kind of thing.