While it was a bit strange to hear something along the lines of not immediately jumping into exploring from someone who called himself the Doctor, she did have to admit she understood it. When she arrived, River met up with her not long after the fact, so it was easier to get an idea of things or to get the jump on exploration. This Doctor, he didn't know anyone else, not really, as far as she knew. She didn't know who else he might know might be out there, aside from the Doctor she spoke with briefly over the network, River and her Doctor.
"They might know a bit more than I do, actually. There's a few people trying to work everything out, to figure out how we all ended up here and why," she explained, so he knew that it was actually a good idea to ask, even if it was unlikely anyone knew anything. "When I showed up, River found me and we ended up staying at a rubbish inn in town, so finding out what others know wouldn't hurt."