Listen carefully to a spoken conversation and you’ll notice that the speakers use a lot of little quasi-words—mm-hmm, um, huh? and the like—that don’t convey any information about the topic of the ...

Finn accepts a challenge by Feifei to speak using only interjections. Does he manage to do this? Listen to the programme to find out. The sounds are followed by facial expressions Feifei: Hello, Finn.

Interjections primarily express emotion — often in a way that doesn’t seem very sophisticated. But Anne Curzan, an English professor at the University of Michigan and regular contributor to the Lingua ...