"....Yeah?" she knows that idiom at least, so they're not totally lost. But as the portal opens up she jumps, gasping in absolute amazement. It takes a second or two to react with words-but when she does, she nods furiously, and glances around at the bend to make sure she doesn't de-orient herself.

"Um..!! ...We have to turn left, over there," she explains, once she's sure of where they are again.