act out

Short definition from Wiktionary

Verb

1. 1
   To perform something specific.
2. 2
   To perform something specific: To perform a scene from a play, a charade or an exercise.
3. 3
   To perform something specific: To perform a fantasy in reality.
4. 4
   To express internal feelings or thoughts: To express one's feelings through disruptive actions.
5. 5
   To express internal feelings or thoughts: To express ideas or desires through actions rather than words.
6. 6
   Used other than figuratively or idiomatically: see act, out.