Here is the full list of all 33 Perception achievements.
Found all touchstones in Chapter 3
Got every other achievement in the game
Found all touchstones in Chapter 2
What we do in life...
Found all touchstones in Chapter 1
Found backer recording
Listened to all of Cassie's messages
Completed the game on Scary Mode
Completed without tapping
Never captured by The Presence
Found out what happened to the animals
Found Kirby
Found every touchstone
Completed every chapter
Completed Chapter 4
Found all touchstones in Chapter 4
Found every poppet
Found 2 Poppets in Chapter 4
Found Susanna's sanctum
Completed Chapter 3
Found 5 backer letters
Found 2 Poppets in Chapter 3
Completed Chapter 2
Turn around…
Found 2 Poppets in Chapter 2
Completed Chapter 1
Listened to every Dearest Pinky song
Best damn bartender
Got the key from the good Doctor
Is it going to get old?
Found 2 Poppets in Chapter 1
Used the telescope
Found Nanci Chang's takeout menu