Despite the fact we've been married 25 years, the only thing we really have in common is our daughter, but it seems to work as we both manage to chat away to each other or else just sit in a comfy silence.
You could just start by asking about his day, or tell him about yours, discuss what's happening in the news or find something amusing in the papers or online, tell him some of the jokes in the Phrases/Sayings. Ask him questions that cannot be answered by a simple yes or no, try and draw him into a conversation