Stop talking to him. He'll say something eventually. :)
by stepping back
So be it. Maybe that's how he wants it. Just enjoy the quiet time.
cut your tongue
Stop talking :)
Ask him questions, bring up things he's interested in.
So you want him to ask you questions and stuff? In a playful way say ''okay now you ask me a question!'' w/ a smile and a giggle, he'll get the picture and every time he ''falls'' off say ''your turn!'' :)
Good luck with that because unfortunately I married one of those!!