if they target a younger audience, it is becoming increasingly common for customers and staff to address each other as , to the degree that it is sometimes considered awkward if a waitress and a customer who are both in their twenties call each other . The use of or between two strangers may also be determined by the setting in which they meet (casual/formal), as well as clothing (casual/formal), gender (same/opposite), and personal preference. For example, it is customary to use in traditional small pubs and taverns in certain regions (including the Rhineland). This applies also to older people, whom one would otherwise address as . Two people who addressed each other as in a pub may go back to when they meet in the street if their acquaintance was only very superficial. During the famous Rhenish carnival, it is customary for most revelers to address each other as . Only if the age difference is more than one generation, the younger person might still use . Another setting in which is often used between adults is sporting events. Being has also become increasingly common in workplace environments (depending on the line of business and corporate culture to varying degrees), mostly regardless of age. In such environments, the basis may also be observed as a (sometimes necessary) mark of good social integration within a working group. As a rule of thumb, one might expect to see team colleagues on the workplace level in many industries on a customary basis with each other, though not always with the group manager and more rarely with higher-ranking managers. As entrants to a team are more closely integrated, this is often marked by making an informal affirmation to that basis or by formally offering it, as a matter of style and habituality. Both the tempo and extent of using the basis depends much on the culture (and sometimes the climate) of the business, and in some places even more so on that of the particular workgroup itself. Business cultures that pride themselves on a "flat hierarchy" are more likely to adopt or accent a general professional parlance of and given name while inside corporations tending to emphasize professional formality, a may be expected to be used always except between very close colleagues or inside closed groups (sometimes including managers meeting on the same level with the exclusion of any subordinates), and strictly always