"How many Bernie Botts do you think I can fit in my mouth?" Crabbe asked.
"A hundred," Goyle replied. "I bet I could fit a hundred and fifty!"
"Will you two dolts shut up?" Draco growled. "I'm trying to think. My father is worried that Potter might be up to something this year. He wants me to keep an eye on him and I need to figure out the best way to do that without getting hexed by Weasley."
Come up with ideas that may help Draco watch Harry. If you don't think he should be watching Harry at all, tell him what you think.