You're right and that's totally make sense about NYC. Yes I'm Thai by nationality and Asian - Chinese by ethnicity. The reason I'm putting Chinese in (not to try to make things anymore confusing) is because here in UK they have asian Indian, Japanese and so forth.
Due to visa situation, I applied to become a British citizenship as
1. It's easier to travel around with a British passport than a Thai one
2. Work wise it's much easier to just tell people I'm British to reduce unintentional desceimination.
3. Thai nationality is one of many that can hold dual citizenship. So, I just think why not.
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She's probably tick white - Caucasian
or if I would assume mixed race
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Exactly, I'm not turning white ans develop blue eyes just because I'm here in the UK. I'm still Thai/Asian