Snape: *no idea why everyone is following him* Hermione: *checking out Snape's ass* Harry: *thinking if this is the perfect moment to jinx Snape or not* Ron: *annoyed that Hermione is checking out Snape's ass and not his* Ginny: *annoyed because she wants to check out Snape's ass too but Ron is blocking her view* Luna: *tags along for no absolute reason* Neville: *was dragged into the line by Luna* Draco: Meh...
Harry and Hermione: staring at Snape's ass Ginny and Ron: Jealous their crushes are staring, but stares along for comparison's sake Luna: sensing out some nargles Neville: ... just got pulled along Draco: Thinks everyone's an idiot because everyone knows his ass is the best
Maybe there's something delicious in the newfound Hogwarts cafeteria [Elves on strike?]! FOOD IS ALWAYS EXCITING! Draco's just nervous because there's a bunch of Gryffindor's in his way. I don't know, I'm just being silly, haha. This is super cute, I love it.
I can see why Draco doesn't want to join: all those Gryffs (and one Raven who's essentially switched Houses) standing between him and his only protection, Professor Snape. And Snape is not keeping an eye on them!