You can distinguish Taiwanese from Hakka. Your family stops asking you when you'll be coming back. You withdraw your money from the bank during Chinese missile tests. Beer really isn't so expensive. You stop and look both ways before driving through a red light.
Smoking is one of the dinner courses.
You wear out your horn before your brakes. The police call you to get information about other foreigners. People who knew you when you first arrived don't recognize you. You speak Chinese to your foreign friends. You own a karaoke machine.