This is really important if you're telling a story or poem by reading it from the page. You can also memorize, which can help, but you want to make sure you know how to read something out loud.  Read it more than once. Especially if you're going to be performing in front of people, you want to read over what you're narrating multiple times, so that you are accustomed to the words and you can look up at your audience. Catch the rhythm of the words. You'll notice for poems and for stories and even stories that are only verbal, that the length of the sentences and the words used create a sort of rhythm. Get yourself accustomed to this rhythm through practice so you can render the story or poem well, out loud. Try to avoid simply reading the story or poem off the page. Narration means that you're taking an active part in engaging your audience and performing the narrative. Look up while you're reading so that you meet the eyes of your audience. To tell the story in an engaging manner you will want to vary your voice in terms of speed, volume, tone, cadence. If you speak only in one tone (monotone) you'll bore your listeners, no matter how interesting the story itself is.  You want your tone to match the tone of the story. For example, you don't want to speak confidingly when you're telling an epic tale (like Beowulf), but you wouldn't want your voice to get all epic if you were narrating a humorous Shell Silverstein poem, or a light fluffy romance. Make sure that you're narrating slowly. When you read aloud, or tell a story to an audience, you want to speak more slowly than you would if you were simply having a conversation. Speaking slowly allows you to capture your audience and allows them to fully appreciate the story or poem. It's good to have water with you when you're narrating and to stop and take a sip so that you can slow down. You want to project your voice, but you don't want to shout. Breathe and speak from your diaphragm. As an exercise to help you figure out how to do this: stand up straight with...

How would you rephrase that briefly using Indonesian?
Biasakan membaca dan berbicara pada waktu yang sama dengan nyaman. Atur nada, kecepatan, dan volume suara Anda. Bicaralah dengan jelas. Tekankan kisah atau puisi di bagian-bagian yang tepat. Ambillah jeda di tempat-tempat yang tepat.