Out of the two girls, Maddie is definitely talking more than Ruthie. She has a couple words that she uses ALL DAY LONG. I think she is just excited that she knows what they mean and how to use them, so she goes around all day saying these four words. I put together a little clip of her saying the words for you to extrapolate. In my opinion, the last one is the hardest to figure out, but I also included a hint in there for you.
A little insider info. I had to ask her to say #1, #2, and #4. For #3 all I had to do was pause her video and that got her attention real quick.