Take pictures to make it look like

The lens of the camera is equivalent to a convex lens. When the object is out of twice the focal length of the convex lens, the image formed by the camera is an inverted and reduced real image.

After taking a full-length photo of Xiaoming, the photographer wants to take a bust of Xiaoming. As the image gets bigger, the object distance will decrease, so if Xiaoming stays where he is, the distance between the lens and Xiaoming will decrease and the lens will extend forward.

So the answer is: handstand; Shrinking; Approaching; Stretch forward