Sakura

Call her pinky

Tell her that her hair looks stupid

Tell her Sasuke hates pink

Constantly compare her to Ino, obviously exaggerating how cool Ino is

Tell her she's a lousy medic-nin

Call her a slut

When she asks why, direct her to her FF results and tell her to look at how many people she's paired with

Insult Sasuke

Tell her Naruto is way better than Sasuke

Call her useless

Inform her of just why Orochimaru wanted Sasuke

Call her a fan girl

Inform her that SasuNaru is more popular than SasuSaku

Call her flat-chested

Tell her Sasori was a little girls doll, how dare she damage him

Congratulate her on finally being useful (In shippuuden)

Dye her hair blonde and laugh saying she looks like Ino

Ask her why her hairs pink

Tell her that her outfit clashes with her hair

Call her a 'pink hulk'

Follow her around every where, when she asks you what you are doing scream "Dattebayo" in her face

Play U.G.L.Y every time she walks past

Tell Naruto that she needs a man, and she has a fetish for foxes