Curate, connect, and discover
You know how Percy gets turned into a Guinea Pig in SoM? Someone headcanoned that Percy's favorite snack is leaves of lettuce because he was turned into a Guinea pig.
What if Percy had other Guinea Pig tendencies?
Imagine Percy whistling and grunting and jumping up and down when he got into the same college as Annabeth, or when Estelle was born.
Imagine Percy squeaking while cuddling with Annabeth, or when Grover is visiting, or while hanging out in the bookshop with Tyson.
Imagine Percy rough-housing with some campers during training and instinctively nipping at them.
Imagine Percy hiding in his room or cabin - not because he's afraid, but because he's stressed. Or huntching over when he sits.
Imagine Percy going to the beach just to dig tunnels (much to Poseidon's concern).
Imagine Percy throwing his head in the air when he gets annoyed or chattering his teeth when he's frustrated.
Imagine Percy holding himself back from licking his loved ones
Imagine Percy walking around his cabin in circles or swimming laps in the camp lake when stressed.
Imagine Percy yawn when he stretches after sleeping every time without fail.
Imagine Percy biting on pencils when he's bored and wants attention.
Imagine Percy rubbing his face on Paul's shoulder after marrying Sally to scent mark him as his family.
So many possibilities for fanfiction