gme.jp

I have just realised...

...what my response should be next time a taxi driver tells me "hey, your Japanese is pretty good":

"Thanks. Hey, you know the roads pretty well, too."

(I realise the asymmetry here, in that while there's no necessity for a non-Japanese to be good at the language [though there's a strong practical incentive] there is for a taxi-driver to have some geographical savvy [at least in theory])