"Gah!" Barbara jumped when someone behind her asked about the doors. She straightened, good one Gordon, get it together. She took a breath and turned around smile on her face, there went the chance to wear the suit after she'd gone through. But well she supposed there wasn't anything wrong with meeting someone new and trying things out while she was here.
"I-" She started and paused, okay multiverse right, that was a thing. "Have you been through yet?" She asked rather than admit that she had a very sneaky suspicion that this was someone she knew from back home. Different look, new costume maybe, but different, but well she was offering help. And in her experience it was probably better to keep her helping than it was to put up road blocks so they could maybe make this work
"Yeah, why not? The more the merrier, right?" She smiled. "I'm Barbara," She introduced herself, "What's your name?" Just stay calm and cool about it all, it was fine, she didn't even know for certain who it was she was dealing with. She could handle this, she was Batgirl after all.