@gemlog Japanese shouldn't be that hard to learn I think, I had even tried it myself. Not much harder than English and it borrows a lot of English words, learning kanji is the hardest part IMO, but also most fun.
And you are right, people do appreciate small things like that. Nowadays it's often emphasized how Russians don't want to learn other languages, that might be true for a lot of people, but not the ones I know personally, a lot of them know languages other than English and Russian.