"buy the foreigner a present day"
A bloody good idea. If you're teaching, don't forget to remind them about Teachers' Day...
Womens' Day has a strong political point about equality and human rights. It may have turned into just giving flowers to women who now get equal pay etc, but still they have more often than not to do a day's work and then go home to do the full housewife thing.
So flowers are nice, really, and forgetting to buy them would be noticed. It also reminds people of Womens' Day, and the reasons for having it as well as keeping it alive round the world, especially in countries where it is very much needed.