Just Call Me Bilingual

Everyone here in Oxford is so intelligent.  Most people here are bilingual or trilingual.  I've been feeling a little inadequate because I only speak English, with a little high school Spanish thrown in.  But, today, I realized that I am actually approaching multilingualism.  I speak American English and am flirting with fluency in British English.  I'm very proud of myself.  It's amazing what can happen when you immerse yourself in a foreign country.
Today, EC invited her classmate, Freddy, over after school.  The Brits would call that "coming round for tea."  Although, Freddy's mum might have been disappointed, because all I offered was water and juice.  Freddy is a quiet kid who wears hand-knitted jumpers almost every day.  "Jumper" is the Brit word for sweater.  They also categorize cardigans as their own thing, so a jumper is really just a sweater with no buttons.  I resisted the urge to tell Freddy's mum, Emma, that her son sounds just like Charlie from "Charlie and Lola."  I guess that would be like telling a Hispanic friend that their child reminds me of Dora or Diego.  EC showed Freddie our Christmas tree, and he asked why it was decorated with things like Barbie and legos.  I told him that instead of using ornaments, we used toys this year.  He looked perplexed, but then I remembered that the Brits don't use the word "ornaments."  They say, "Baubles."  So, I corrected my sentence and said that instead of baubles, we used toys.  He still looked confused, but I guess my style choices don't make sense to everyone.  The Brits also call Christmas lights, "fairy lights."  And, they call cupcakes, "fairy cakes."  There must be more fairies in England than America.
Oh, that reminds me of another culture that speaks their own version of English:  South Africa.  My South African friend, Lara, told me that in her country, they call the traffic lights, "robots."  Like, "oh just take a left at the second robot."  I think that's hilarious!
But, I can't waste my time trying to be trilingual.  I must focus on my second language, British English for a while longer.  When EC goes to school, she has to register with her teacher, which means check in.  The teacher "ticks" her name off in the "register."  In America, we call that the roll book.  And we "check" kids names off our roll.  Also here, I've been confused by people saying to "write it in my diary."  I want to tell them that I'm not that interesting, as to need to keep a diary.  They only mean to put it in my calendar.
When we go to the farmer's market, it would be easy to be confused.  "Aubergine" is what they call eggplant here.  "Coriander" is cilantro.  That one really stressed me out when we first arrived.  I wanted to make my own salsa because the salsa here is pretty sad.  I tried looking up cilantro on the online grocery ordering website.  It came up with no matches.  I was pretty worried about a cilantro-free salsa, until I thought to Google the phrase, "What do Brits call cilantro?" and found my answer, coriander.  Courgettes are what we Yanks like to call zucchini squash.  It all sounds so glamorous!
Well, I'm pretty knackered, so I think I'll head to bed.  That doesn't mean drunk or beat up, it just means tired.  I'm sure I'll think of some more of my new language to share with you at another date.