Stand up straight L

Girl: You know, you should really stand up straight.
L: o.o *Straightens back, cracking sounds can be heard XD*
Girl: : D Yay!
L: *Attempts to walk while shaking*
Girl: ^-^ That's it!
L: *Hands over lollipop and walks away hunchbacked* ...
Girl: Eh?

Spoiler-ish >.<
I just recently watched L Change the World and loved every 129 minutes of it. ;w;b. Even though the plot is nothing like the manga/anime, I still loved it. It's nice to see L in serious physical action D:!

This is one of my favourite scenes when he gets told off for his hunchbackedness. I can't remember the girl's name T.T;