For the past three weeks I have been baby-sitting a robot. It looks like an extra-large lollipop on wheels and using it is a little like owning a puppy. For the past three weeks I have been baby-sitting a robot. It is not your traditional looking robot — if there is such a thing yet — but looks like an extra-large lollipop on wheels. People ask, “Can it do any neat tricks?” The robot I adopted, the Texai, is made by Willow Garage, a technology company based in California, and is designed for telepresence. I wheeled past, said hello over the robot’s speakers and watched through the camera as her head moved slowly with my passing, the spoon still suspended in midair.