Everyday occurances

Two people are walking down the street towards each other. Straight at each other. In the US they both step to the right and avoid any unnecessary eye contact. In the UK they both step to the left and avoid smacking over sized noses.

But what if an innocent American finds herself walking down a Scottish street and runs into this conundrum. They both follow their natural instincts and nose smack into eyes and the street is covered in various kinds of goo. Soon the American learns and starts stepping left. Stepping left naturally.
Then that American moves home, but still stepping left. Resulting in more eye contact than the average New Yorker is used to having to negotiate. The young American is scared and confused. Will she every go back to normal and naturally step right? There's so much riding on this innocuous habit. Not to mention how this might impact her political leanings.