It is not the case that "things" are interesting in and of themselves. An audience finds them interesting or not. Interest is a property of the listener or obs

It is not the case that "things" are interesting in and of themselves. An audience finds them interesting or not. Interest is a property of the listener or observer. You can just comment on the things you find interesting, and presumably there are some people out there more or less like you that will find the same things interesting. It is worth noting that it takes some skill and effort to make things interesting for an audience, and that can be substantial.