One of the great joys of being a kid is having someone read you a story. (Audio books are a reasonable substitute for adults, right?)
One of the great tools in a writer's toolbelt is reading aloud - your own manuscript, that is!
I often find that when I read my own work out loud I find numerous mistakes in rythmn, word choice and/or pacing. You'll find missing words, misplaced words, and various other little stinkers that are often missed by only proof-reading.
It's a good exercise & one I heartily recommend!