I thought the same... Last time something written by BB in Facebook end of 2011, last tweet in Twitter in September 2011... Not necessarily need to have a PR guy to do that, just use Facebook or Twitter (because you have it) once in a while to show that there is something going on. Even only simple background information can be interesting... Not much work besides daily business.
The method of learning Japanese recommended by experts is to be born as a Japanese baby and raised by a Japanese family, in Japan. And even then it is not easy...