Coming from countries where you drive on the left hand side of the road and therefore in cars which are right hand drive it took a bit of adjusting to left hand drive cars in the USA. In fact I have still not fully adjusted.
On occasion, when I go to the car I walk around to the right hand side of the car to get in. On opening the door I notice that I have arrived at the wrong side. I surreptitiously glance around to see if anyone has noticed and if so I pretend to shuffle some papers on the passenger seat or check the glove compartment. Sometimes I've taken things out of the glove compartment to make it look like I was fetching something before closing the passenger door with authority and walking purposefully around to the drivers side.
On a bad day I will climb into the passenger side of the car and close the door before discovering that the steering wheel is missing. I have yet to work out a way to recover from this. In fact I don't think that there is a recovery. I could climb over the gear changer but if the police were to see that then they'd probably arrest me for impersonating a drunk. Instead, I sheepishly climb out the car and shuffle around to the drivers side hoping that the laughter and giggles I can hear in the parking lot are not directed at me.