4. You will encounter some rudeness.
Because of those high crowd levels, you'll find that other peoples' politeness barometers tend to...well, shut down. The sheer amount of other people all going in different directions can be overwhelming, and made all the more stressful for groups trying to keep their people together and safe, so it's understandable to an extent (even if frustrating at times).
Do the best you can to show politeness to others during your visit, and try to let all the small grievances roll off your back rather than letting them add up to bad experience.
