Set your cell phone on silent mode and please refrain from making calls during your ride. (Turn your phone off when near courtesy seats.)
Courtesy seats can be found at the end of each car. Please give up your seat should someone need it more. Courtesy seats are easily identified by a sticker on the window behind them.
Tokyo Metro has adopted women-only cars during the morning rush hour so that women and elementary and younger children can ride with a sense of security.
The designated boarding areas along platforms are marked with the "Women only" sign clearly indicating the locations of cars that are for women only during rush hour (generally until 9:30 a.m.)