Casual guests in the tourism industry is often referred to as FIT (Foreign Independent Tourist), meaning to go to foreign independent tourists, this kind of travel often prepaid a certain travel expenses, no accompaniment, the number of people in the number of 5 people, but in some places if the tourists request, can also provide guided tours.FIT is also sometimes referred to as a foreign individual tourism (Foreign Individual Tourist), that is, individuals or families in accordance with a specially formulated travel plan alone or by a travel agency in accordance with the travel plan made together with the travel wholesaler. Individual Tourist (FIT) is sometimes referred to as Foreign Individual Tourist (FIT), i.e., an individual or a family travelling alone according to a specially formulated travel plan, or a travel agent undertaking a tour according to a travel plan formulated together with a travel wholesaler. In fact, because there is no clear definition of the casual tourist, people can be defined from different perspectives, such as the form of the package price, the size of the team, commissioned by the form of sales and the location of the group as the standard, but there is a **** the same point is that the casual tourist tourism have autonomy, flexibility and diversity of characteristics, but the purchase of tourism products emphasize the "à la carte" or "tailor-made". "or" tailor-made ", tourists voluntarily combined, self-defined routes, "go with the purchase", rather than a one-time payment of travel expenses or completely passive acceptance of the established tourism program.

In other industries, there is also the term casual visitor. For example, the restaurant industry refers to consumers who come without a reservation; the wholesale industry refers to customers without a purchasing contract; and manufacturers refer to walk-ins without a contract.