Not particularly artistic, but just want to show you it can be achieved
SWD 12-60mm @ 46mm, F4, ISO 320, not my son - someone else - donno who
Edit by crop using picasa: crop, cos I did lousy framing for this.
Focus on eyes, see bokeh on his hand, then again this could be blur because of movement hehe.
SWD 12-60mm @ 54mm, F3.5, ISO 100, my better half
Edit: Pseudo HRD using gimp, thus lost the EXIF
Focus on her, see bokeh on the 2 girls behind
SWD 50-200 @ 200mm, F4.5, ISO 125, a bride in Hangzhou, donno who - she was having photo taken - I just took her photo while passing by at the park
Focus on her, bokeh at background. Her expression is like WTH another photographer?!?! LOL
So bokeh is not that the object is small or big.
The longer the focal length, the more bokeh you get.
Place the subject in focus closer to the lense (you get closer), make sure background you want to be in bokeh is further away.
F-stop plays a part but really you can get bokeh still at higher F stop (you dont need F1.x), just make sure you have enough light and you arrange (position) object in focus & the background (a bit hard to achieve if you are shooting street photography though)