Along with your lens, the key to bokeh is separating your subject from your background. The further away, the more blur you'll achieve. The photos below are the perfect examples of how the combination of a lens set at 1.4 and separating your subject from the background creates that beautiful blurry bokeh.
With the photo on the left, the model is directly on top of the leaves, creating zero separation to create the bokeh. But with the model on the right, she was about 50 feet away from the trees in the back, allowing for the background to fall out of focus.