Professor Flitwick assigned him to be your partner for the upcoming charms assignment. Draco never really talked to you, but he didn't think he needed to seeing as how chummy you were with Luna and Hermione.

Draco tapped on your shoulder whilst you were relaxing in the great hall.

"I'd like to get this over with as soon as possible, so could you put some effort in and start soon?" He asked in a rude manner, clearly not wanting to work with you.