Speaking at an event hosted by Bezeq telecommunications group in Israel, the actor admitted that he finds the experience "bizarre", reports Reuters.
"A lot of times, my wife and I sit across from each other and Tweet. It's a little bizarre," he said.
"It's the same reason why you send roses to a woman at work. Sometimes people like to be adored in public."
Kutcher and Moore have reportedly gone abroad to work on issues in their marriage.