In a 2-player game, is the set-aside card chosen before or after the three cards are revealed from the deck?

Question

Accepted Answer

After, on the best reading: reveal the three cards and place the observed tokens first, then each player sets one card aside from their hand. The rules do not spell out this order inside the two-player preparation, so treat it as a reading rather than a ruling.

Cat in the Box: Deluxe Edition

In a 2-player game, is the set-aside card chosen before or after the three cards are revealed from the deck?