I guess officially, I speak English at home seeing as it's my first language and all that, but my mum and I have a tendancy to slip into Spanish or French as she's fluent (but rusty) in both and I'm learning both as much as I can. My step-family speak Irish (yes, it is a language, also known as Gaelic... look on google translate, it's different to English), but me and my mum don't speak it so they don't speak it around us.
I'm in a pretty international boarding school too, so with my Chinese friends here, I speak Chinese (I'm learning), and I speak French and Spanish to my best friends because that way we can have conversations with most people not understanding what they say. Yeah, I speak a mix xD Still officially a white English-speaking unilingual person though :3