Year 13’s final day of school is High School Musical themed. They’ve hung a giant East High sign over the Truham one at the school gate. They’ve been playing the soundtrack on classroom computers, so wherever you are in the school you can hear a High School Musical song playing from somewhere, but you’re never quite sure where.
-- Charlie (Part 1)

Importance: The seniors have a barbecue that has a High School Musical theme. This quote is important because it highlights the romantic tone of the novel.

When we first started going out, we didn’t tell people for a while. We didn’t really know how people would react to us, so it was safer to just be low-key. There hadn’t been an openly gay couple in our school, well, ever, as far as we knew, and I’d been bullied a lot when I was outed. So we...
-- Charlie (Part 1)