Harmony sung to himself between (and sometimes during) licks of his ice cream, people watching for the most part. He hadn't done particularly well in his OWLS - they hadn't mattered as much as holding Terry's hand or three hour long giggling conversations with him at the time, and fuck, did everything come back to his broken heart? - and he was happy enough not to talk about them.
His heartache was pervasive though and his humming and bouncing eventually trailed off until he was lapping at his ice cream despondently, his mouth sticky with the raspberry red 'lava', his tongue black and sugary from the explosive element.