Not quite sure what you mean but roundabouts work by giving way to your right plus a bit of a mexican standoff if you all arrive at a mini one at the sametime.
Other than that I can't think of anything special about the right. Or left for that matter. You should only overtake on the right but that's not a law it's just in the highway code. But you can only find room to undertake on a motorway anyway.
Other than that I can't think of anything special about the right. Or left for that matter. You should only overtake on the right but that's not a law it's just in the highway code. But you can only find room to undertake on a motorway anyway.