play-acting

noun2

1. •
   The acting of a play or plays; the occupation of an actor; dramatic performance.

   • Despite growing Puritan disapproval of play-acting, vehemently expressed in sermons and pamphlets, Charles's court was famous for its amateur theatricals. — 2003
2. •
   (figurative) The act of engaging in pretence or insincere behavior, often in order to mislead someone or gain an advantage.

   • Children's games are often play-actings of adult roles and thus inculcate the values and customs of the culture in a way that formal schooling might neglect. — 1963