Since Miitomo is going to internationally releasing tomorrow, feel free to add me as a friend by following me on Twitter. After that, tweet at me to follow you for Miitomo. You can personally learn about me since I'm actually honestly answering the questions. My answer's language will be in Japanese and English due to my followers'/fan base language being Japanese and English after all.
I've been on the app for quite a while and it's just strangely addicting. I got to Style Level 8 and Popularity Level 3 with 60+ questions answered (and 20+ JP friends).
To add me via 3DS, feel free check this section: 3DS Friend Code Exchange and Miiverse
By the way, here's an interesting question that I'm surprised that it can be in English. (My friend's answer is relying on senpai.)