act — When you act, you do something for a particular purpose.
dramatise — to put into a form suitable for acting on a stage.
dramatize — to put into a form suitable for acting on a stage.
overact — (of an actor) act a role in an exaggerated manner.
overdramatize — to put into a form suitable for acting on a stage.
overplay — to exaggerate or overemphasize (one's role in a play, an emotion, an effect, etc.): The young actor overplayed Hamlet shamelessly. The director of the movie had overplayed the pathos.