In UK a [experienced, older?] driver gives another driver instructions with "right hand down" and "left hand down". That is, you give directions to move the ste

In UK a [experienced, older?] driver gives another driver instructions with "right hand down" and "left hand down". That is, you give directions to move the steering wheel. I've the vaguest recollection that sailing/steam boats used to say which side to move the wheel towards to steer; that begging opposite of the way the boat will go??