Wiktionary
act out
vb. 1 (context idiomatic English) To go through the process of a scene from a play, a charade or a pointless exercise. 2 (context idiomatic English) To express one's feelings through disruptive actions.
WordNet
Usage examples of "act out".
Internalizers initially are more trusting but when frustrated or hurt by someone they act out aggressively.
It follows we must begin to provide architectural stages upon which our vast population can act out their lives.
If one of us is lying, then we must act out a simple melodrama of innocence pitted against iniquity.
I am going to actually act out a story, and make you one of the main characters!
They act out their hostilities and describe themselves and each other to whomever they can talk into visiting them.