cue in

verb3

1. •
   To signal (someone) to join a performance or to begin a task at a particular moment.

   • The conductor cued me in at the wrong time.
2. •
   To identify and understand signals, emotions, body language, subtext, etc.; to connect with someone.

   • A good therapist can cue in to even the toughest of clients.
3. •
   To add elements (dialogue, music, special effects) to a specific spot in a script.

   • We should cue in the music at the end of this scene.