Once a pedestrian enters the vehicle, the destination is displayed on screen and is marked by a blip on the radar and a colored marker at the destination itself. Starting the mission lights up the taxi's roof-mounted sign encouraging nearby pedestrians to flag the player's taxi down.
In the 3D Universe games and Grand Theft Auto: Chinatown Wars, the player can earn money by delivering pedestrians to their predetermined destination within a time limit. Pedestrians will simply enter Claude's taxi if he stops near them, and will alight when he stops again.
The player can make money when they are in a taxi in Grand Theft Auto 2, though no destinations will be chosen. In Grand Theft Auto V, it is triggered by entering a taxi and activating the mission via pressing a button when a call on the radio comes up.
In Grand Theft Auto IV, the side mission is triggered by telephoning Roman about taking a fare (see Taxi Driver in GTA IV). In the 3D Universe, the side mission is triggered by entering a Taxi and pressing the side mission button.