Ron gave Hermione this look where he scrunched up one half of his face. It was a look somewhere between confused, unimpressed and only slightly interested. He was tired of hearing about the dreams, but of course Hermione was going to have some theory and she was probably going to tell him all about it. Yup. In about three seconds or so.
"I had a dream last night about killing demons," Ron replied with a shrug, letting the face he was making disappear. "But that's normal since I haven't been able to play any Diablo."