Welcome to American English
Brother and sister love. International language. No words are needed.
Thank you for coming. I have nothing against any other type of English, and in fact even American English has some differences depending where you are in the United States. One English is not better than another and everyone has an accent of some sort which can identify where they learned to speak English. American English Class will be talking about English from the American point of view.
So if they say things differently in England or Australia or wherever you happen to be, it is just because everyone has their own special ways of doing things. Life would be boring if we didn’t. The main purpose of learning a language is usually to communicate.