Batgirl was waiting for her on that roof. She'd watched Red Robin take down those bank robbers. The costume was new, but the movements were very much Tim Drake. Kind of altered, as if he'd learned new things while he was away, but it didn't change who he was.
"Tim," she whispered as she emerged from the shadows and architecture. She wasn't sure what name he was going by now, so she wasn't sure if 'Robin' still applied. But she wanted to make it clear she knew who she was. Her body language made it clear she'd missed him.