@Jenny welcome to CC from downunder we have visited Scotland several times as it keeps calling us back with the countryside, buildings, history and the enjoy of listening to the Scottish voices. We have a connection with husbands father being born there and left when he was 4 yrs old.
Cooking and trying new receipes is a great way to open doors along with your friend. As @Helen744 mentions books for her guests I too offer a selection of books to read and have made bookmarkers which has written on them saying "If you enjoying reading this and haven't finished you can take me home " This is my way of turning over our books in our collection.
It is great to see other Aussies welcomming you @Robin4 and @Helen744 and I am sure you will enjoy this journey that you will be taken on and sometimes shaking your head thinking how did we end up here, how can peoples thoughts change in the opposite direction and I am now at a dead end, what was the real positive outcome.
But all I am sure your travels around the world through hosts from different parts of this world we share and have similar ideas for the better of Airbnb.