Like every single chapter apart of Detective Pikachu, you will be able to activate a variety of different Pika Prompts during the sixth chapter of the game. Some of these Pika Prompts have certain location requirements found in this chapter, while some you can activate by doing nothing special at all. In total, you can obtain 12 Different Pika Prompts during the sixth chapter of the game. Below is a list of all said Pika Prompts, along with the requirements for each.
Even If I Become A TV Star... (GNN): Be Outside GNN Building
Hoothoot's Feet (GNN): Be Near Hoothoot
Dancing With Kricketune (GNN): Be Near Kricketune
Who's In The Mirror? (GNN): Be Near Dressing Room
Carina's Voice? (GNN): Be Near Chatot
Drink Server (GNN): Be Near Vending Machine
What's Inside Mimikyu's Disguise? (GNN): Be Near Mimikyu
Purugly's Whereabouts (GNN): Be Near Purugly
Pikachu's Poses (GNN): Be In Studio
Don't Dillydally (GNN): Be In Hallway
Just A Little More (GNN): Be In Hallway
A Chance To Show Our Skills (GNN): Be In Hallway