'act out' definitions:

Definition of 'act out'

From: WordNet
verb
Represent an incident, state, or emotion by action, especially on stage; "She could act neurotic anxiety"
verb
Act out; represent or perform as if in a play; "She reenacted what had happened earlier that day" [syn: enact, reenact, act out]

Synonyms of 'act out'

From: Moby Thesaurus