here is Karin with her hair up and when Itachi finds her in her room getting ready to train. Well, actually he walks in on her when she just got done putting the outfit on haha. and here is what they say to eachother.

Karin- "Itachi.....? uhhhh...........Hello. What are you doing here?

Itachi- "I came to see if you were done getting dressed for training..."

Karin- "Oh, well. I'm done."

Itachi- "I can see that.....Come. But watch out for Deidara."

Karin: "Why?"

Itachi- "Because I can tell easily that he likes you."

Karin- "Oh."

Itachi- "and you look nice in that."

Karin- "Uhhhhh.... thanks. I guess."

Itachi- "Come, let's get to training."