Today interactivity is associated with information technology – but this chapter does not deal with virtual manipulations. (Museum multimedia is the theme of Chapter 7 of this book.) In the 1950s a new trend emerged in museums: previously, visitors could not lay hands on anything in an exhibition, but the hands-on model made objects available for tactile inspection. Later the minds-on model followed: visitors were invited to think about an exhibition, not just view or handle it. The current trend is body-on, the involvement of the whole body in the museum experience. Observation of learning styles of museum visitors has become an important part of planning. These approaches are targeted to those who enjoy learning by doing, information processing through experimentation and individual knowledge construction. The illustrated examples below indicate that most visitors appreciate these opportunities and readily engage in an interactive museum learning experience.