Theo had told Ginny that Pansy and Astoria usually assigned them last, so they had time for a quick catch up and drop off of materials. So, she stood still in Blaise’s body as each wizard disappeared down the hallways. She was not to reveal her true identity to the witches; though they were trustworthy, the group was unsure how the witches might respond to Ginny’s presence. They didn’t know her.