Behavior is often altered indirectly, so let's examine observational or social learning. Define and give an example of observational learning, contagious behavior and stimulus enhancement. Then, discuss how you could influence the development of a fad in children, teens or adults. A fad might include wearing specific clothing or consuming a new product such as a new cell phone. Describe the fad in detail, the elements of observational learning that are involved and several factors that can influence whether observers will attend to a model's behavior.