Three girls jumped on the train, on their way to college. Two were sharing the headphones of an i-pod between them. Although they didn't need to, it was loud enough to know it was Rihanna's 'what's my name', even from where I was sitting. In between verses they were dissecting her performance on the Brit Awards.
The third girl stood quietly next to them, listening, but not taking part.
Then one of the plugged in girls reached out, just her finger tips, very lightly, on the third girl's coat sleeve.
"Are you okay ? " she asked, " you look a bit sad."