A call can be interpreted as a form of signal that recognizes, respects or thanks the recipient of the call. Another simple but very common example of a call is a military salute. By greeting, signaling or showing another rank, that person testifies to the importance or importance of that person and his or her rank. Some greetings are considered vulgar, others as „rude“ and others as „polite“. Portuguese default speech uses an address expression such as Caro (Dear) or Excelentíssimo Senhor (Most Excellent Sir), followed by the recipient titles (z.B. Eng.) and the recipient. Dear Road Warriors: (to a sales group that was traveling non-stop last month, with a message announcing the results of the sale. . . .