Chopper was sitting atop Zoro's head.
Zoro was training shirtless.
Hinata was watching them from afar. Like many younger girls, she thought that Chopper was sooooooooo adorable! And, like many older girls, she thought that Zoro looked dead sexy without his shirt on.
"Oi, what do you want?" Zoro asked as he walked closer to Hinata, giving her a better look at his body.
Hinata blushed, nosebled and fainted.
"What a peculiar girl..." Zoro thought.