To choose a friendly structure in a letter, it would be most appropriate for the following audiences:
-
Friends or Family - When writing to close friends or family members, a friendly and informal tone is typically used to convey warmth and familiarity.
-
Co-workers or Colleagues (in a more casual or friendly context) - If the relationship with co-workers is informal and friendly, a friendly structure may be suitable, especially if the communication is more personal rather than strictly professional.
If you have specific options in mind, please share them for more accurate guidance!