Same way as you, I'd guess. One moment we were in Orphan's Cradle, then Orphan did something weird, and...

[He punches his palm. He hasn't forgotten how to do that, in all this time. The gesture made, he takes a long moment to look at Lightning -- comparing her with the image in his head, reacquainting himself with her.]

Serah just showed up a few days ago. Man, just when I thought my week couldn't get any better!