You are a girl and a Geengrass, Astoria and Daphne's sister, and you're with Draco, Lorenzo, Theodore, Pansy, Blaise, Mattheo, and Tom, and you don't recognize a student.
You: "Oh are you new here?"
Hufflepuff girl: "Yeah..."
You: "Oh, no way. What house are you in?"
Hufflepuff girl: "Hufflepuff..."
You: "Uh, that's so cute. I love hufflepuffs!"
Hufflepuff girl: "Uhm... are you Gryffindor or something??..."
You: "Oh, no no no. I'm a Slytherin..."
Hufflepuff girl: "Oh..."
You: "Oh no, don't worry. Lupins class is great, and After last year with the chamber we could really use a break... Who else do you have?"
Hufflepuff girl: "Hagrid.."
You: "Oh he's the best, make sure to read the book though, cause you just don't know what to expect.."
Draco: "Why are you talking to this Mudblood."
You: "Draco don't be rude."
You look at the Hufflepuff again.
You: "Sorry he's literally the worst. His dad's like a death eater."
Mattheo: "Don't talk to her."
You look at Mattheo.
You: "Stop bothering us."
Hufflepuff girl: "Will you sit with me tomorrow...? I think I really like this class.."
Draco: "Fuck no, Mudblood."
You: "Draco one more word, and I will crucio your ass."