One of the biggest differences between male school students in Japan and Australia is that if a group of Australian kids ever saw one of their peers pull out a pink hand mirror and start preening his hair, they'd beat the shit out of him.
Conversely (perversely?) in Japan, its the too-cool-for-school kids who are seen with the mirrors and make-up. Seriously. Apparently the male cosmetic market in Japan is the biggest in the world, and having seen some of the kids, its not hard to disbelieve.
Speaking of make-up, one of the strangest phenomena for a newcomer to Japan is watching young Japanese women on the train pull out the make-up bag and religiously touch up a patch here, an invisible blemish there, ok, now we've finished, oh, gotta check the hair, make sure each and every strand is just oh-so-perfect (a 10 minutes process), now check my scarf, yes looking good, back to the hair, checking my scarf made a few strands change position, fix it up, and so on.