▶ If you have studied Japanese, you may notice that some people speak in a different way from what you studied. This is the casual form. Friends and family members speak to each other in this form.
▶ The Japanese language has many levels of politeness. For example, there are several levels of politeness to say “How are you? ” We change our politeness level depending on who we are talking to.
▶ The politest level is used, for example, when company staff talk to customers. In the past, children talked to parents politely, but they are more casual today.