Caleigh reading at 20 months

Caleigh is 20 months old and her language is developing so rapidly.  My favorite thing she has been saying lately is "wanna read this?" - she says it over and over and it sounds more like "wanna-re-dis, wanna-re-dis, wanna-re-dis."  She will bring us books all the time asking us - "wanna-re-dis." Her favorite word continues to be "no" and she continues to talk to us all the time as if we know exactly what she is saying.  We don't often know what Caleigh is saying but find ourselves making up what she might be saying and repeating it back to her - if we don't, she will keep saying the same sentence over and over.  She must think that we don't hear her unless we repeat something back.  Here is a video of Caleigh reading on a Saturday morning - 

We have tried to get a video of Caleigh's 'tricks' - all she can say and do - but she is very camera-shy - as soon as we get out the camera she won't perform.  Looks like we have an introvert on our hands.