Charlie is a great big brother. We have a step stool next to Rosie's changing table so he can "help." and he always throws her diapers away in the diaper pail. He runs to her if she is crying and always checks on her. He has even tried to pick her up to comfort her. But his favorite thing is to sit in her chair and say, "Rosie Up." Which means, please let me hold Rosie.