Is there an order to Oranguru's "Primate Wisdom" Ability? For example, can a player look at the top card before picking a card from their hand to put on the top of your deck? Or do they have to pick the card from their hand first?
The text of Primate Wisdom says to switch the card. This happens at the same time, so no you do not get to look at the top card of your deck first.
Source: TPCi Rules Team (2020-02-27)

Relevant cards

Note: All applicable cards may not be listed below.
SWSH1_148
SWSH1_148