So where's the manual for someone who just arrived in the US explaining that? How am I supposed to know that if someone doesn't tell me? How is that even a vag

So where's the manual for someone who just arrived in the US explaining that? How am I supposed to know that if someone doesn't tell me? How is that even a vaguely acceptable response, let alone _expected_ behavior I should anticipate? I cannot even fathom someone spitting in my food in Australia under pretty much any circumstance. Absolutely ludicrous!