Last night as I took Marissa out of the bath and set her on the rug, she said, "Uh-oh!!" Now usually this means look for the stream, she's peeing.
However, this time, she started reaching for the little toilet insert that we put on the toilet seat so she and Lindsey can sit comfortably on the toilet without fear of falling in. So I quickly grabbed her little potty seat, put it on the toilet and set her on it.
Sure enough, she went pee pee on the potty! We were so proud of her, we clapped and clapped and she grinned proudly. Perhaps this is a start of good things...but based on our experience w/Lindsey, I won't get my hopes up.