I heard many times that the Japanese consider it bad manner if a girl/woman apply make-up in public, for example in a train or metro. I don't feel bothered by it. In fact, I find it rather charming. I much prefer seeing a girl making herself pretty than an old man picking his nose in public. In the metro in Tokyo there are signs for "prohibited behaviours", like fighting, drinking alcohol, talking loudly on the phone, and applying make-up. I really don't get why this last one is bad etiquette. Is it just me ? How do you feel about it ?