Find a subject in front of a background with depth. Take a close viewpoint and zoom in; you’ll need to be aware of the minimum focusing distance of your lens. Focus on the subject and take a single shot. Then, without changing the focal length, set the focus to infinity and take a second shot.
The armrest of the bench show clearly the shallow depth of field. The sharp area does not go very far and the background is blurred. The sharp part of the bench clearly draws the attention as it is difficult to clearly identify the items in the back. 48mm equiv at 1/400s and f4.2