Babysitting for a 20 month old girl in a few weeks time and need to know what i should do with her?

I would get some DVD's for her to watch where she can dance around and jump around. I would wait on the puppets for about another year or two. I also wouldn't get the tea set not yet in about a year or two. You can take her to the park, or you can get very colorful books and read. She is defintely at an age where she is a sponge ready to learn. Take it from me I have a 2 year old daughter who has energy to burn.