As a child I learned how to say, “Excuse me.” To not walk directly in front of someone but instead, let them pass. To not reach across someone to retrieve something, but instead to politely ask for it or better yet – have patience and wait.
Most importantly, I would NEVER stand less than 12 inches behind someone in line at the grocery store. Standing TWO INCHES behind someone is NEVER acceptable.
Every now and then, living here drives me crazy.