The occupation of 'hanging out' is not unique or restricted to the young. Seniors, too, engage in hanging out, particularly in mass public spaces such as shopping centres and malls. This paper raises issues pertaining to the nature of such spaces, the place of older people within them, and the occupations in which they are engaged. A research and policy agenda is outlined that considers how environment influences the exclusion or inclusion of people in mass public spaces, and the types of occupation in which they might engage.