Walking on the Wrong Side of the Pond

"Me thinks that the moment my legs begin to move, my thoughts begin to flow."

-Henry David Thoreau

So I was walking down the stairs in the JFSB the other day and a really random thought hit me. I was observing the manner in which we as a society walk around. It's pretty much an accepted cultural norm here in the U.S. that you stay to the right. I mean we do that on the roads obviously, but it typically occurs in the same manner with running and walking as well. You walk on the sidewalk, you stay to the right. You go up or down the stairs, you stay to the right. So the thought crossed my mind, is this a norm specific to America? I know in Great Britain they drive on the wrong side of the road, do they also walk on the wrong side of the sidewalk? So anybody that can answer my question (I imagine you can C. and probably will) I'd love to hear. Also, if there are any other mannerisms that you've noticed in general that are funny between cultures that aren't glaringly obvious or you've just been curious about feel free to post.