She didn’t have class for another 30 minutes and Snape had made a big point about making sure he took them correctly so she took that to mean that she should at least sit with him. She didn’t have much energy to move yet and the hot drink was doing well for her.

HAGRID: So, you gonna tell me what I ‘af to do then?

LOUISA: If you want. (she sat on the chair and took the chair and instructions out of the small bag.)
Looks simple enough. Just apply the serum, and mix these two together and shake. He even gave you a big bottle to mix it all in !

HAGRID: G’d bloke your ‘ncle. (louisa smiled. It’s not like SHE didn’t know it but others didn’t seem to appreciate him).

LOUISA: haha!!! It has a note on the instructions… well done on your alchemy test, should have mentioned about gold in a little more detail. Knew… Oh well never mind that bit.

(starts shaking the bottle.) Ok this will sting. Have you got a clean cloth Hagrid?

HAGRID: err… well… is this alright?

LOUISA: I guess. She soaks the cloth in the liquid and washes is hands and face.
Now put the serum on the cuts.

HAGRID: How’d I look?

LOUISA: err… better.

HAGRID: So? What’s your story?

LOUISA: Do I have to?

HAGRID: I gave you mine.

LOUISA: I…I…sort of stopped eating. But only for a while!!!

HAGRID: You never! Lou! What with Fred and George!

LOUISA: Don’t make me feel worse! But I’m better now. I was hiding it. But you only see me like this because I’m not
going to hide it anymore. Never again. Not from anyone!

HAGRID: I see that Lou. But you’ll Promise me alright? (she nods)

LOUISA: It says that I have to take it back to my next lesson. You won’t be teaching for a day or two, will you?

HAGRID: dunno.

LOUISA: well one of us will be back with more to top you up. He's lonely though I guess.

HAGRID: I guess