This is her first crawl, over Christmas. Now, we are just trying to keep her from electronics and the Christmas tree with very ineffective barriers like couch pillows. She is listening to "no," too (when she's not just grinning and proceeding anyway). She also enjoys pulling herself up on all furniture, and has learned to walk around the coffee table while holding on. Amazing, cute, but frightening when she falls over. Next step is learning to sit down from a standing position. She really gets around. It's amazing.