Lavender shot to her feet when Ginny flew out in the team procession before the start of the game. She waved her pendant wildly but Ginny seemed focused on the task at hand and didn't see her. That really shouldn't have been that much of a surprise; Ginny had always been rather focused when flying around the pitch at Hogwarts.
Despite never being that into Quidditch, Lavender had learned a lot about it from Ginny when they were fooling around. Despite what some believed, they did do other things besides have sex! In truth, Lavender did miss talking to Ginny.
With one assist in mere seconds of the start of the game, Lavender was sure she was in for an enjoyable match of watching Ginny kick arse. Sitting down once more as the cheering died down, Lavender did begin to wonder what she would do if Ginny didn't notice her in the stands before the game ended.