Playing with bokeh is something that so many of us photographers love to do. It's just the most pleasing ethereal dance of shapes and colour hues. One can get lost in the other wordiness of it at times. Never the same twice. The magic of it never pales. The faster you lens aperture the more you will create. At least f/2.8 and even moving to f/1.8 or f/1.4 for even more striking effect.
The shapes of the diaphragm blades of your lens will dictate the shape of your bokeh orbs somewhat. They may be round or hexagonal.
It's also possible to create if you don't have a fast lens. You can create by putting more distance between your subject and the background. This can also be achieved by getting closer to the subject with the camera. Aim for shallow depth of field or increasing distance between subject and background and the bokeh will appear.
It can be a useful technique to incorporate if the background to your photo is something less than very photogenic or distracting to the subject in any way too.
Thoughtful use of lights - backlight, sidelight or hair light in portraiture can also create beautiful bokeh.
Have fun playing with your photography, there is always more to learn, experience, create and enjoy in our view finders.
