This video highlights our work toward creating robots that interactively learn about container and non-container objects. It demonstrates that a robot can distinguish between them by dropping a block in the area above the object and observing the co-movement patterns while pushing the object. Also, the video illustrates that the robot can learn a perceptual model of containers to identify novel containers in the environment. Check out the lab's webpage at http://www.ece.iastate.edu/~alexs/lab/ or the first author's webpage at http://www.ece.iastate.edu/~shaneg/research.html for more information.