@rulesjapan: Empty seat on a Japanese train? Check the color first 💺🇯🇵 Priority seats, the Help Mark, and what to do. Comment your answer: A, B or C? 👇 Save this for your Japan trip ✈️ #japantravel #tokyotrain #japantips #visitjapan #japantrip #tokyo #traveltips #japanmanners