Scorpius looks for reasons to hate Rose Weasley and her freckles provide a scapegoat for his feelings: they're everywhere, he can't stand them, and he hates that he keeps noticing their placement.
It's a full-time job, worrying about Sirius Black. However, she's so busy caring about him, she conveniently forgets that there's nobody around to focus on her...
Hermione sees books in colours. When she tries to explain this to her friends, however, it's simply written off as "a Hermione thing." Good thing Percy understands.
Hermione is perfectly content to spend her Christmas in solitude. Harry and Ron are perfectly content to intervene. Needless to say, she is not a dog person.
In order to prevent the destruction of the wizarding world, Hermione Granger goes back in time to work behind the scenes. However, she underestimates two very important factors: refashioning her life in a completely different reality... and Sirius Black.