Potty time...

So Claire has been saying "potty" and grabbing at her diaper. I have set her on the toilet at Grandma's house because she has a big girl potty that fits over the toilet. We don't have one yet, but she insists that she must go potty on the toilet. Here are some pictures of her sitting on the potty doing nothing except wiping. She never goes! Too cute! Is 20 months a good time to start?