As a foreigner it’s probably very difficult for it to not be a failo if you’re caught if you’re not running alt konnichiwarts fraudmaxxing game.
It’s pretty normalized for the foids but for men it’s way more subcultural (and gay). The colored ones are also pretty creepy and super obvious ime but maybe they can’t tell as easily on a foreigner
And yeah green vs blue prob barely matters. Nice try mate but it’s time to surgerymaxx