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