What are the best techniques for achieving swirly bokeh effects using a Nikon lens?

To achieve swirly bokeh effects using a Nikon lens, you can try using a lens with a wide aperture, such as f/1.4 or f/1.8, and shooting at a close distance to your subject. Additionally, using a lens with a longer focal length and incorporating elements like lights or foliage in the background can enhance the swirly bokeh effect. Experimenting with different compositions and settings can help you achieve the desired result.