Bokeh comes from the Japanese word boke (ボケ), which means “blur” or “blur quality.” Learn how to easily get started with creating your own bokeh-effect photography with 3 steps on the Redbubble blog. Add this gorgeous lighting effect to your favorite shots for a dazzling, romantic look.
How to make your own Bokeh. This site tell you how to get those big, beautiful, blurry lights, when taking pictures. It's actually pretty ingenious. I never would have thought of this (probably because I'm not very good at taking pictures)