Choose a location with a plain white background, such as a wall.
Set up lights on either side of the subject. Make sure the person's face is well-lit without strange shadows. Do not allow the person's head to cast a shadow on the wall behind him. A third light placed behind the subject and facing upward will help eliminate such shadows.
Tell the subject to look straight at the camera and not to smile broadly. The facial expression should be natural and neutral.
Hold the camera at the subject's eye level and shoot the picture straight on, about four feet away from the subject. The person's face should be center in the picture.
Create a photo print that is 2 inches square and in color. Make sure the subject's head is between 1 inch and 1 3/8 inch tall. The person's eyes should hit between 1 1/8 inch and 1 3/8 inch from the bottom of the picture.
Print a high-resolution picture on thin photo paper.