To do that, Hansen revealed that some of the All Blacks camp have been studying the Japanese language as part of their long-term World Cup preparations.
"We're busy at home studying to see if we can learn some of it," Hansen said. "For some it's easy, for others it's difficult."
The All Blacks will visit Japan this year as part of their World Cup build-up, with their third Bledisloe Cup test today being confirmed as being held in Yokohama.
Read more: All Blacks and Wallabies to play in Japan
It will be the second Bledisloe match to be played in Japan, with the two teams playing at the National Stadium, Tokyo, in 2009.
"We're delighted to confirm that a Bledisloe Cup test match will be played in Japan for the second time in the history of this great rivalry," NZR chief executive Steve Tew said.
"The last match in 2009 was a fantastic event but this year's test at the 72,000-seat stadium in Yokohama will be at another level. The All Blacks have huge support in Japan so the Bledisloe Cup test will be important for the team as we build support ahead of Rugby World Cup 2019."
The All Blacks will then play a test against Japan the following weekend in Tokyo.
Hansen said the All Blacks' two tests in Japan would give the team ideal preparation ahead of next year's tournament.
"It will be great for the team to prepare in two of the Rugby World Cup cities and play at the same venues. As well as preparing for a huge Bledisloe Cup test and another important test against Japan, it'll also give the team a chance to have a really good 'dummy run' of the facilities, and experience the unique Japanese culture. We look forward to again being hosted by the Japanese later in the year."
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