I'm Australian, so English is my mother tongue, but the good thing about it is, I also know American and British through movies, TV and books. Yeah, I know they're just dialects and not languages in and of themselves, but it's still a cool thing, especially when you realise that lots of Americans have no idea about Australian English. There are literally thousands of words, sayings and idioms unique to my homeland that you can only really learn by living here, whereas I've learned a plethora of Americanisms and Britishisms throughout my life simply through media exposure.
Example, take this:
One arvo, me and my mate planned to hit the turps, and were about to crack open our first tinnie, when we realised the fridge had carked it, so, still keen to knock a few back, we jumped in the ute and headed to bottle-o for some more amber fluid. Unfortunately, my place is out in woop woop, so this took yonks, especially when we had to chuck a u-e after the fruit loop forgot the way. We got there in the end though, and coz I know the sheila who works there, we even got mate's rates and an esky chucked in for free. It was a deadset ripper!
No one actually talks like that, but it's still perfectly understood by any Aussie. How'd y'all go?