A few possible areas for conversation:
1. What's the craziest invention you've ever seen?
(The dog-shaped vacuum certainly makes my short list.)
2. What hasn't been invented yet but should?
(I think Bluetooth Earmuffs would be fun while preventing frostbite.)
3. How do you feel about a live-action Alvin & The Chipmunks movie?
(I need some convincing.)
I've said enough. Go ahead and chat it up.