When PhD advisor (in an interview) says "Tell me about your research interests", should you also say how it relates to their interests?
This is different enough from the answer of Bill Barth that it should probably be factored out of comments. An alternate consideration for you in any case.
The question you ask is subtle. Maybe the approach should also be subtle. Start out assuming it will be obvious and see where that goes. You can always make it more explicit.
If it is immediately clear that the prof &quot;groks it&quot; then you don't need to do anything else. If they are confused, make it clearer. Because if they are confused then it needs to be made clearer.