you either find some common ground you can build a convo upon or talk about yourselves in turns. Or just go full late night presenter and let the other person do the talking, "tell me more" etc. Maybe give up altogether
Ask questions. People always want to talk about themselves.
The question / dilemma was mentioned mostly in jest but advice is welcomed regardless.
Getting them to talk about themselves is my general approach--and most people don't give a shit about whatever it is I do in my flat so they're not exactly pursuing me conversationally--but it comes down to all the things I can quite happily talk about--music, books, games, creative endeavours etc--are none of the things most of my visitors care about, being more interested in The Only Way Is Essex type social life drama and who's fucked who, which I am sure is fun but not on my radar. In particular, I found not watching television / movies shuts down 90% of all conversational topics. especially with my little brother who does little else than go the cinema.
So it's not really boring in the sense that I am unable to talk--I can happily talk anyone to death as people in CHATMM may have noticed, and I am boring there too--but when it comes to my visitors, we move in too differently shaped circles to talk in depth about anything. And any steps to readdress this--watching films, going out and getting drunk every night--are not exactly worth it. I love my visitors but I am merely aware of how little common ground there is between us, which is all the more prominent when silence takes over.
(That said, people have told me they like coming to my place because it is peaceful and quiet, plus I always have plenty of tea / biscuits to eat so maybe my boringness is the reason they came?)
Hide the jigsaw puzzle.
Put a collection of sex toys on the coffee table and see what happens.
I suspect that they think the jigsaw puzzle is a sex toy...