Cortana mostly shops in person to add to her frankly kind of worrisome Master Chief action figure collection, which is why she's out and about using her body today. While she's monitoring the integrity of the credit transaction, she uses a few microseconds to run an estimate on manufacturing cost for the model she's buying and comes up with a number that displeases her. Sigh. Even amortizing the design costs, they're really starting to gouge on the collector's editions.

Bag in hand, she turns to leave and almost brushes past Drift without a second glance, but one of her periodic internal sensor checks--she's even more paranoid since the Brainiac 8 affair--returns some interesting data.

"Huh. Nice hologram."

Trust her. She knows a few things about creating holographic representations.