Related Clues:

• Offhand
• Spontaneously
• Sans script
• Make up lines
• Off-the-script comment
• Seat-of-the-pants performance
• Wing it, in a way
• Impromptu
• Go off the script
• Spontaneous
• Forgo the script
• Improvise on stage
• Seat-of-the-pants schtick
• Stray from the script
• It's made off-the-cuff