How do you add somewhere to favorites in gta Chinatown wars?

In GTA: Chinatown Wars, you can add a location to your favorites by accessing the map on your PDA. Once the map is open, navigate to the location you want to favorite, then press the appropriate button (usually the "A" button on consoles) to mark it as a favorite. This will save the location, making it easier to find later. You can view your favorites from the PDA whenever you need to navigate.