Mary's jolted by his movement, and sits up, confused, thinking quickly.

"Hey, why did you..." For once, because the gods smile on everyone once, she doesn't say anything. She'd be lying if she wasn't a little disappointed by Harry's reaction though, mainly because now she doesn't know what to do. Scenarios flicker through her mind, and she settles in the end for getting up.

"I'm just going to grab some of the sweets."