Hiding the fact that he just peeked at Rize's chest lmao (chapter 1)

Hiding the fact that food tastes horribly wrong to him (chapter 2)

Hiding the fact that he tagged along with Hide because he's worried (chapter 7)

Hiding the fact that he made a mad face in front of Hide because he pondered about Kimi possibly being a ghoul (chapter 12)

Little Kaneki hiding the fact that he's actually not okay with what his mom is doing (chapter 140)

Hiding the fact that Touka taught him the wrong preparation of the latte (?) (chapter 67)

Hiding the fact that Rize is "dead" from Banjou (chapter 51)

Hiding the fact that he actually knows something about the daughter ghoul (chapter 30)

Hiding the fact that everything's actually not okay and everything's a mess (chapter 120)