If you're serious, there is a technique that I've seen work before and experienced it myself but it takes effort. You'll need to spend a couple hours a day learning verbs and their different conjugations. This is just writing the different verbs and respective conjugations repeatedly. From there you start learning sentence structure and then add in nouns. If you're absolutely serious to be conversational in 3 months you'll have to dedicate at least 3-5 hours per day every day to this. As others have said listen to music and watch TV but no subtitles (many times the translation is crap). Good luck!
Conversational japanese in less than 90 days...... Why do I picture an instant gratification millennial asking this question?....
Get a Japanese gf that is willing to kick your balls if you're wrong And don't get lost there. My first subway ride to work in Tokyo took me 3.5 h instead of 40min. Pretty confusing sometimes. After that, the fun starts. I never learned it though, but dedication and a good teacher will get you there
50 yrs old today with an expat that starts after Christmas. Gotta get a few things squared before accepting the assignment, which might not happen. We'll see.
John, The assignment is to set up a PMO, and change culture. I think I have to be fairly conversational to exert the kind of influence necessary. I proposed this to my leadership, and they're mulling over whether or not they need me to keep ownership of my current program and have me start expat a little later (but the new year is pretty symbolic) or hand off the current responsibility. Since we're financially set up as different entities, I think it'll be the former.
Good luck. I LOVE Japan and wish I could speak the language to unlock some of the secrets there. Have been 5-6 times and can only speak a dozen words or so.
find a Portuguese Jesuit priest with an English - Japanese dictionary and hire Lady Mariko to teach you