I think this means: Recently, women in the train who are unconscious of others while applying their makeup really stands out. To explain it further, in Japan it is considered to be a bit rude when women apply their make up in public places such as in the train. Therefore when someone does this, she really stands out as being rude. 因为在日本，公共场合里面女性化妆是不礼貌的。所以一个女性在电车里面不管别人的眼光这样做的时候，很不雅观，and therefore she stands out. Hope this helps :)