Copying what I say when reading stories

[ZebraLovesKnitting]

DD is 1 year 9 months old. She absolutely loves stories. However, she's started copying whatever I read. She's not really interrupting, I can carry on and read the whole story normally (in fact that's what she wants me to do), but she'll say every single word about a half a second after I do. If I stop then she stops, if I start again then she starts again.

Is this, for want of a better word, "usual"? I never had this with 4 year old DS, and in fact I've never come across this at all before. Should I be concerned?

[Superworm]

My 2.5 year old does this. He likes to 'read' the story to me.

[Lovelydiscusfish]

My dd started doing something like this when she was older than your dd (maybe 2), and it turned out she was trying to learn the stories! There are now a few books she can recite big chunks of, and this is how she learned them. Nothing to worry about, I would think. Just a way of trying out speech and learning new words, I assume,

[DonkeysDontRideBicycles]

Just her way of participating? Your DS may have preferred simply listening.