If you are able to choose " aperture " and match it with the " focal length " used, plus your subject " distance ".
" distance " meaning... camera to foregrd and subject, subject and backgrd.
To chieve " bokeh " result / effect, do the following ;
* Set camera's ISO to lowest, e.g. 80, 50 or if there is a 25.
* Choose file / image size to the largest.
* Activate " anti-shake " device, if there is one.
* Make sure your subject is within 2.0 m. ideally...1.5 m. ( especially for PnS camera. )
* Shoot only head and shoulder composition.
* Avoid full length portrait or groups.
* Use maximum " zoom " range to shoot. ( not Macro, for it will cause distortion. Macro is meant for small / tiny object. )
* Avoid using " A " mode at all cost.
* Turn off auto flash.
* Use " P " program mode, or
* " T " speed mode, or
* Sport mode.
The principle is very simple... to cheat / fool the camera's programe to choose the maximum aperture.
Enjoy your photography.