Giles would have said to be cautious. He would have had a whole list of ways to test Buffy, to test this new reality, but Willow couldn’t for the life of her guess a single one of those hypothetical tests when faced with her best friend’s beaming face. She was in full on excited-Buffy mode, bouncing around in the way only a shoe sale or four shots of espresso could usually provoke, almost exactly like the Buffy back home. Same Buffy, she reminded herself, different chapter but same Buffy. Probably. Hopefully. Better be. Still she grinned back, already treating any test she would give her friend as a game rather than a serious task. She needed one stable thing in this crazy seal-world where Xander was twenty-three and Oz didn’t love her and there was another apocalypse (well, actually, the apocalypse-thing felt pretty homey) and Buffy was pretty much the most stable thing in the world.
“Um,” she started as she matched Buffy’s thinking face, “okay so...you’re from a couple months ago? Okay, what does two months younger Buffy know that no one else does... um...oh!” She practically bounced onto her toes as a question came to her, “What were your careers on career day?” she asked. Of course she had no idea what she would do if this wasn’t actually Buffy but it was good to be cautious right? That should get her karma points on the grand cosmic preparedness balance or something, shouldn’t it?