Related Clues:

• Go overboard on stage
• Show feelings when large book on computer taken back?
• Use one's reflexes
• Act badly, in a way
• Annoy one's co-star, perhaps
• Act theatrically
• Play too broadly, on stage
• Portray feelings theatrically
• Behave like a thespian
• Be a hammy actor
• Respond to second performance?
• Trace (anag.)
• Respond dramatically to calls for an encore?
• Respond in respect of insincere performance
• About turn - swing back in the opposite direction