休憩時間。
下向いてるから寝てるのかな？と思ったけど、違いました。
空き時間が出来るとすぐにスマホを触ってしまうのは、どの国も共通のようです📲😆

Break time.
I thought they were sleeping because they were looking down, but it wasn’t.
It seems common for all countries to touch their smartphones as soon as they have free time📲😆