Like every single chapter apart of Detective Pikachu, you will be able to activate a variety of different Pika Prompts during the fifth 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 15 Different Pika Prompts during the fifth chapter of the game. Below is a list of all said Pika Prompts, along with the requirements for each.
Nightmare (Fine Park): No Special Requirement
Rain (Fine Park): No Special Requirement
Waiting Out The Rain (Fine Park): No Special Requirement
Flamethrower (Fine Park): No Special Requirement
Thunder (Fine Park): No Special Requirement
Coffee Cup (Fine Park): Be Near Teacup Ride
Pokemon Food (Fine Park): Be Near Southwest Pokemon Food
The One That Matches The Donut (Fine Park): Be Near Donut Sign
Comparing Voices With Loudred (Fine Park): Be Near Loudred
Portrait (Fine Park): Cheer Up Smeargle
The Stuffull Disconnect (Fine Park): Befriend Stufful
Gashes On The Wall (Fine Park): Be Near Ferris Wheel
The Ferris Wheel (Fine Park): Be Near Ferris Wheel
What's Stuck To It? (Fine Park): Search For Joltik
The Cannon (Fine Park): Be Near Cannon After Rescuing Buneary