I use a lot of British spelling and vocabulary, but I'm American. I think it all rubbed off when I was 18 and spent 8 weeks traveling through Britain and France. Back then I was fluent in French so I stayed in the countries where I could speak the language.Ah yes, I can speak both English and British.
Bilingual.
I've been watching the Sorted Food channel and it took me a bit to realise that courgette was, in fact, a zucchini, and aubergine an eggplant.