This page lists the various objects which which the spy can interact.
Books and Bookcases[]
Characters can take books from bookcases. The spy will need to do this for the Transfer Microfilm mission, and may also be able to perform the Fingerprint Ambassador mission. All the books in a book case are the same color, and there are unique colors assigned to each bookcase. This means that the spy can simply look at the color of the book they are holding to know the bookcase from which it came. Unlike real books, however, when the book is placed into a different bookcase, its color will change to match the color of the books in that bookcase.
When a book is held by a character, the sniper sees it as gray rather than the color of the bookcase from which it came. This means that the sniper must try to remember the book's original color to track the Transfer Microfilm mission.
Briefcase[]
The ambassador carries a briefcase, and he or she will occasionally put it down and forget it. Characters can pick it up and return it to the ambassador. A spy holding the briefcase may be able to attempt the Fingerprint Ambassador mission.
Drink[]
Toby offers drinks to the guests, either from his tray or from the bar depending on the venue. A spy may have the opportunity to lift the ambassador's fingerprints from a drink. Taking drinks is part of the Purloin Guest List mission.
Guest List[]
The guest list can be found on Toby's tray (if he is a waiter) or in his pocket (if he is a bartender). Stealing it is one of the missions a spy can perform.
Painting[]
Some venues have paintings on the walls, with pads where partygoers can stand and look at them. There are no missions specifically associated with paintings, although a spy can flirt with their seduction target at any pad and can request a drink to purloin the guest list if it is not a bar venue.
Statue[]
Most venues have golden statues which guests can pick up and examine. Spies may do this to perform the Swap Statue and Inspect Statues missions. If the ambassador has recently touched the statue, the spy may also be able to lift their fingerprints from it. There are three different statue models: the Maltese Falcon, the Venus of Willendorf, and the idol from Raiders of the Lost Ark.