Other side of the road, I'm afraid. But for the record I was in the states last year with a friend and we got a car and she didn't want to drive so I did it. Hadn't done it before but couldn't believe how easy it was. Ok, having an automatic made it easier cos I didn't have to worry about changing gears. But I found that because I was in the other seat my personal position in the road was the same, i.e. I sat closest to the white line, if you get me, and that made it feel more natural, so it was kind of automatic to take a wide left turn and a tight right because I was still in the right place.
You'll be fine.