American Etiquette
When you first meet someone, it is usually polite to ask "How old are you?"
False. It is often considered impolite to ask a direct question about someone’s salary, wealth, weight or age.
In the USA, it is not rude to talk to a stranger before introducing yourself or having someone introduce you.
True!
If someone offers you food, it is impolite to refuse.
False. It is acceptable to be a ‘fussy eater’ in America and refuse some food without explanation. You can just say "No, thank you."