That’s a Bokeh Effect
The Bokeh effect in photography refers to the aesthetic quality of the blur produced in the out-of-focus parts of an image. It is achieved by using a white aperture to create a shallow depth of field, which makes the foreground subject sharp while throwing the background out of focus. Bokeh can be used to create a sense of depth in an image.
It is often used in portraits, wildlife, and macro photography. Bokeh can also add a dreamy or romantic feel to a photo, making it a popular wedding and engagement photography technique. Everything about this snap is romantic, except that guy spitting out water. That’s nasty!