How to Learn Pronunciation in English

We'd say tune, like, play, play a tune on the piano. And they'd say, tune. Thus a not enti but enthu enthusiastic. It's american. And british, enthusiastic, a duty, duty, whereas they say duty. So those are some of the kind of basic differences in pronunciation between british and American english. I think for me, personally, i think that copying and just listening and trying to copy er different sounds is a really good way of understanding the differences er.