I drove in Ireland once (last time we played over there). Would have actually like to get a manual, but my wife was also an occasional designated driver, so we went with an auto. The initial drive out of the parking garage was probably the weirdest part. Just took a few minutes to adjust to having so much car on the left side of me. Other adjustments:
- Getting used to which lanes cars would be coming from at smaller intersections (like, country road, T intersections).
- Figuring out what lanes go where in larger intersections. Usually you can just follow the car in front of you. In general, traffic circles were easy, intersections with lights, less so.
- Checking your rearview mirror. The first day I was driving I had this kind of nagging feeling that I didn't have as much situational awareness as usual. What I realized was that I was looking up and and to the right for subconscious rearview mirror checks instead of to the left.
- Turn signal/windshield wiper stalks. I honestly don't remember if they were flipped or if my brain tried to make them flipped, but I frequently used the wrong one.
Overall it was a good, fun, uneventful driving experience. I only got honked at once (no clue why, it was on mostly empty roads at night in Belfast), my wife tagged a curb at some point, a few tight squeezes on small roads, but no really scary moments or near-misses.