Just a little thing I noticed, but I think with cultural relevance: with my little experience in India, I think I learned two things already:
India is FAST
India has little tolerance for mistakes. You make a mistake, well, too bad for you.
So here is what I noticed and which I find fitting both properties above: you can cancel a selection in the elevator, I learned this the hard way. Just press the button AGAIN – bingo, the selection is cancelled.
Would this be possible in Japan? Nope – too polite of a culture.
Would it be possible in the US or Germany? Nope – average population wouldn’t get it 🙂 More seriously: people prefer simplicity over speed.