There is a guy who I met in Pittsburgh who is my favorite person ever to have a conversation with over lunch or coffee. It wasn’t the content of any one conversation, it’s that we could have a conversation about most anything that interested us. And, get this - we could even talk about politics or religion without someone walking off in a righteous huff.
It helped that he is a pretty intelligent dude, but that’s not what makes him great at conversations. It is his curiosity.