Place the perspective mirror face down on a flat work surface.
Tape a piece of butcher paper over the mirror back with masking tape. Another option is a paper grocery sack.
Press along the mirror back with your fingers to find each hole.
Poke a sharpened pencil through the holes. This provides a guideline to mount the mirror on the wall.
Remove the butcher paper from the back of the mirror.
Locate the studs in the wall area with a stud finder. Do this in the area you want to hang the perspective mirror. Mark the studs with a pencil mark so you can place the paper over the area.
Tape the butcher paper to the wall are with the studs. Use masking tape to prevent damaging the wall paint.
Step away from the wall and check the paper to ensure it is not crooked and this is the best location for the perspective mirror.
Use an electric drill and a small drill bit to add the holes to the wall through the paper.
Rip off the butcher paper and install the appropriate sized screws with the screwdriver.