Phrasal Verbs with 'Act'

Act on

To take action because of something like information received

Example: The police were ACTING ON a tip from an informer and caught the gang red-handed.

Act on

Affect

Example: The medicine only ACTS ON infected tissue.

Act out

Perform something with actions and gestures.

Example: They ACTED OUT the story on stage.

Act out

Express an emotion in your behaviour

Example: Their anger is ACTED OUT in their antisocial behaviour.

Act up

Behave badly or strangely

Example: My computer's ACTING UP; I think I might have a virus.

Act upon

To take action because of something like information received

Example: The police were ACTING UPON a tip-off.

Act upon

Affect

Example: The enzyme ACTS UPON certain proteins.