Working in pairs, one is the camera; the other is the photographer.
The photographer walks behind her "camera," with hands on their camera's shoulders. They carefully guide their partner, who keeps their eyes closed. They will have the chance to make three photos.
Person one can guide the camera to just the right spot, either lifting his or her head up or down, to get the right angle. When ready to take the picture, she/he gently squeezes her partner's shoulders.
The person taking the picture describes what they can see whilst their partner keeps their eyes closed. Then they must open their eyes and point to the 'image' their partner was describing.
After the third snapshot, have the partners switch.