DICTION TRAINING is needed even if English is your mother tongue. If you notice that you often have to repeat yourself or that you’re being judged negatively, it may be due to your diction, your improper enunciation.
This happens a lot. Your language skills were formed by your family, friends and environment. Everyone spoke the same, therefore, there was no judgement nor misunderstanding. Once outside of those comfortable surroundings, it’s a different scenario.
An American man approached me and this is what I heard him ask, “You need atohmay?” I said, “I’m sorry, I don’t know what an ‘atohmay’ is”. Exasperated, he handed me his business card; he was a “tow man”, for those unfortunate days when your car just won’t start.