In Korea, the eldest person at the table should start eating first. Don’t pick up your chopsticks, spoon, or whatever utensil you’re using until the oldest person has started eating.
In Vietnam, commit to crossing the road. It looks scary with the endless scooter stampedes, but if you just cross at a steady pace, they’ll avoid you. Do not try to dodge or make sudden movements. Just simply walk across.
You are allowed to wear Flip flops and shorts wherever you go. The fancy city area? Flipflop and Shorts are perfect. That 5 star hotel? Flip flops are welcomed. Public transport? You are weird if you do not wear them
In Paris, you should always say “bonjour” when entering a shop or restaurant and “au revoir” when leaving. Even if you don’t purchase anything or walk right in and out.
Do. Not. Leave. Trash. At. The. Monuments.
Also, get out of the water. It’s not a pool.
In Denmark, do not stand or walk in the bike lane. You will get yelled at…and/or hit by a cyclist.
In South Africa when you go on a “safari” (we call it a game drive), you must never ever get out of your vehicle or get close to any big animals because that is how there are stories of people dying to animals here. Just please stay safe and obey the rules to save lives.
Switzerland is really expensive, and you should know that ahead of time. Don’t make that surprised face when you have to pay $15 for a Subway sandwich.
Don’t talk to anyone in public. Only approach people for conversations if they are receptionists or something similar.
It’s not for your security or anything, but it freaks us the hell out. No one talks to strangers in Norway, unless you’re hiking and above the treelines.
Assume that I support Trump or am a fundamentalist Christian because I am a white American male. I’ve been talked down to by Germans in particular and don’t like it. I wish I had more than one vote, or be rich enough to live in different countries as my mood and politics changes, but that is not in the cards.