What are the best settings for the Nikon D3200 flash to achieve optimal lighting in low-light conditions?

To achieve optimal lighting in low-light conditions with the Nikon D3200 flash, it is recommended to use the flash in TTL mode, set the flash exposure compensation to around 1 or 2, adjust the flash output to a lower power setting, and use a diffuser to soften the light. Additionally, consider using a slower shutter speed to allow more ambient light into the scene.