These days there is a bit of a moral panic in Japan about "walking and using a smartphone" (especially it seems in train stations) and there are signs and announcements about not walking and using a phone. Maybe it's better to encourage awareness of what's around you instead of advocating the unrealistic "no use" policy, but that's just my opinion.
沒有智能手機走
cellphone、Japan、manners、mobile+phone、no、prohibit、remix+94549、remix+99823、smartphone、walking
手機、日本、禮貌、移動+電話、沒有、禁止、混音+ 94549、混音+ 99823、手機、步行
資料來源：openclipart ( https://openclipart.org/ )