Bokeh
In this photo i focused i made everything blurry
so then the sky starts to look like circles, this is bokeh.

Bokeh
As you focus in on the leaf the foreground becomes
blurry and as it becomes blurry it looks like bokeh.

  

Close Up
In this photo I focused in on the leaf, but as you try
to focus in on all the leaves the whole picture becomes
blurry, that is why you only focus in on one.

Close Up
As you focus in on the numbers the whole 
picture becomes focused.

Focus Foreground
Graffiti wall, As you focus in on the graffiti the background
becomes out of focus, therefore it becomes focus foreground.

Focus Foreground
As you focus in on the spider and the gate the foreground
becomes blurry so all you can see is the spider and the
spider and the gate.