Related Clues:

• Go overboard on stage
• Show feelings when large book on computer taken back?
• 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
• I thump a jerk and act melodramatically
• Be overtheatrical
• Act like an amateur?
• Exaggerate one's feelings
• Domestic Cockney lifted skin of the ham
• Wear one's heart on one's sleeve