It's rude to talk while at a live performance.
Nick is at an orchestral performance with a friend who has never been to the orchestra before.
Nick wants to inform his friend about what will happen in the performance.
Nick pulls out his phone, looks up the performance, and hands it to his friend to read.
Nick leans over to his friend and starts telling him about the performance and the composer.
The performance continues uninterrupted and everyone enjoys the live program.
The conductor stops the orchestra, turns around, points his baton at Nick, and tells him to be silent.