role play

In roleplaying, participants adopt and act out the role of characters, or parts, that may have personalities, motivations, and backgrounds different from their own. Roleplaying is like being in an improvisational drama or free-form theatre, in which the participants are the actors who are playing parts, and the audience.
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the concept that people role play many different parts in life e.g. husband, son, father, lover, mother daughter, student, etc.. Some argue that life is nothing other than role play with no core 'self'.

role-play
danh từ sự sắm vai (nhất là trong dạy ngoại ngữ, điều trị bệnh nhân tâm thần) nội động từ sắm vai
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n. การแสดงละคร, การแสดงบทบาท