Possible Clues:

• Acknowledge applause
• Acknowledge applause and prepare to play?
• Acknowledge applause with bodily movement
• Violinist's lesson one? Acknowledge your audience
• Acknowledge applause as entertainer does
• Acknowledge the bravos
• What a violinist will do before and after performing
• Acknowledge applause, bend from waist
• Rihanna song with the lyrics "That was quite a show / Very entertaining / But it's over now"
• 'Archer might acknowledge applause like this (4,1,3)'