I have english as my first language but I moved to a country where most people learn it as a second language and people are horrified to see how I communicate w

I have english as my first language but I moved to a country where most people learn it as a second language and people are horrified to see how I communicate with my sister. Of course, I wouldn't do it with them when i'm actually trying to communicate effectively. I think its one of those "when you understand the rules well you can break them" type thing, here it indicates a carefree and playful tone, for a similar reason to how the lack of capitalisation in the title etc indicates a casual tone. It's trying to avoid being Official and Boastful and Buisnesslike. In particular, the first sentence is similarly playful with its choice of words; suffice to say this is intentionally poetry