As an American I see this a lot (talking to fill the spaces), and it’s really irritating. I have family members who do it, and it’s really hard to have meaningful conversations with them. My relationship with them suffers, too. One of them chastised me once for not sharing information about myself, my reply was “every time I start to you change the subject” … that was met with stunned silence. It got marginally better after but reverted to the mean fairly quickly.

Listening is a great skill to have.

I fully agree, but some people are attracted to this space filling 'switched on' (it's not, I am thinking about something completely different and just generating random output with the speech center of my brain) peolple; it's some kind of a hack to be 'liked' and 'thought off as being a fast thinker'. I never use it with friends or colleagues. But it works very well in interviews, parties, social gatherings, VCs etc.

I sometimes have to yell "shut up" when this gets too much for me. I can't get a word in because they are filling space (sometimes complaining that I don't talk enough).