Fortunately I've never had to drive a RHD car in a LHD country or vise-versa... THAT would be confusing.
The driving is easy, but getting into a true rhythm of looking the right way at stop signs, etc., without looking like Chuckie the mad puppet it tougher.
Same is true at crosswalks when walking
Steve
Well, RHD does give a slight bit of added security- when I'm shifting, my right (stronger) hand is holding the wheel, which might make quick manoveuring easier- but there really is little difference to me in general practise.