When Blaine asks Andie out, directly behind him can be seen a girl in white tights with a blue and yellow dress on. In the next shot, the same girl can be seen behind Andie. Throughout the scene the girl is shown standing behind both Blaine and Andie, even though they are sitting on opposite sides of one another and the view of the playground behind them each is different.
When Andie is at Trax waiting for her first date with Blane, she is holding a light-colored clutch purse. When she and Blane are walking to his car she has a large multi-colored purse hanging from her shoulder.