Alice noticed that she always seemed to sit across the table from him. Lily had recently gotten it into her brain that the school year wouldn't be complete until she had hooked her friend up with Frank Longbottom, despite the fact that their OWLS were quickly approaching. She would drag Alice from whatever seat she had already picked and push her down into the chair or bench across from the young man. The girl had somehow even gotten James and Sirius in on it; the gits would sandwich poor Frank between them, keeping him put and occupied until Lily had her settled.
As annoying as it was at first, it didn't seem so bad after Alice noticed the slight flush spreading up Frank's neck every time she looked up.