"As long as there are no Harry Potter posters on the wall, I will be fine and happy," Watson, 19, told PEOPLE at the Harry Potter and the Half-Blood Prince press conference in New York Thursday. "Oh God, it's part luck, isn't it. We'll see."
Daniel Radcliffe, however, saw an opportunity to tease his costar. "I really hope they are a really massive Harry Potter fan," joked Radcliffe. "I hope you walk in and the first thing you see is your face on a duvet."
Watson, who plays Hermione Granger, is moving across the pond in late August to attend an Ivy League college and earn a liberal arts degree possibly in English literature or Art. She admits she will be homesick.
"I will miss marmite, baked beans, London taxis and the rain!" Watson told PEOPLE Thursday night at the film’s premiere at the Ziegfeld Theatre. "I may have to bring boxes full of marmite and baked beans with me."
When ask what kind of roommate she will be, Watson says she will be a polite and tidy one. "Cleanliness is good. Hopefully I'm reasonably okay to live with," she said.
Will Keep ActingThough she will be focused on her studies, Watson won't turn her back on the craft that made her famous.
"I definitely want to continue. I've managed to juggle and balance studying and working well enough to this point so I can't see why I can't keep doing that," she said. "But I am looking forward to being a normal teenager and want a normal experience for a bit. Just a little bit of normality for a while would be nice."
That's one of the reasons she'll live in the dorm. "If I'm going to do this experience, I'm going to do it properly and going to do it like everyone else," she said.
Watson admits she will need to brush up on her culinary skills now that she will have to cook meals for herself during late night studying breaks.
"I'm terrible at cooking," she said. "I live alone at the moment with a flatmate so I've kind of had an introduction to cooking but I need to improve."
She also confesses to be prone to kitchen mishaps.
"I’ve had tons of mishaps all the time. I've left the oven on many times where things overcooked and caused smoke and lots of other bad things." But Watson does claim one specialty: "I can make a fantastic bowl of spaghetti bolognese."