Ballerina has a little joke she only tells herself when she is playing by herself. It goes something like this (imagine it in a cute 2 1/2 year old girl voice)...
Is anybody there?
Repeats at least 3 times.
Today she was helping me with laundry. I would hand her the wet laundry from the washer and she would put it in the dryer. She would say thank you for each piece I gave her then she would say the name of the person who that piece of laundry belonged to.