What is it and why do we do it?
See Woman’s Hour: How to chat with someone you don’t know and how it can be good for you. https://www.bbc.co.uk/programmes/articles/11PDNqNtzMPNkdx3vbzrKJF/how-to-chat-with-someone-you-dont-know-and-why-it-can-be-good-for-you
10:30-12:30