• GONADS125@feddit.de
      link
      fedilink
      arrow-up
      4
      ·
      10 months ago

      I learned in Japan that it is a thank you button. Like if someone let’s you into a lane, you flash twice to say thank you and turn it off.

      I’ve noticed truck drivers do the same here in the US, so I’ve started doing this as well as a regular driver.