Dating is a stage of romantic relationships in which two individuals engage in activity together, most often with the intention of evaluating each other's suitability as a partner in a future intimate relationship. It falls into the category of courtship, consisting of social events carried out by the couple either alone or with others. The protocols and practices of dating and the terms used to describe it vary vastly between cultures, societies, and time periods. Although dating is most often colloquially used to refer to the action of individuals engaging in dates with one other, dating can also encompass a wide range of activities which fall outside participation in dates.