I particularly like:
7. Mostly it's the 'prepared for anything' look they have about them (fanny pack, backpack, bottled water, camera pouch) compared to various other tourists - Asians tend to herd together for safety, while Europeans vary between blend-right-in Scandinavian to designer-brands-everywhere French and traffic-laws-are-for-others Italian. But Americans are the only ones who seem to view a perfectly civilized, modern city like some kind of uncharted jungle that doesn't have places to shelter in the rain or buy cheap bottled water.