Measure the length of the picture and couch using a measuring tape.
Divide the couch measurement in two. Re-measure this length and place a pencil mark 5 to 9 inches above the tallest part of the couch on the wall. This indicates the center of the couch.
Make a second mark, directly above the first mark on the wall, at eye-level from a standing position.
Divide the length of the picture measurement in two. Place that number on the measuring tape on the second mark. Draw a third pencil mark at the end of the measuring tape and again at the measurement that corresponds to the total length of the picture.
Secure two wall-mount hooks to the wall using a hammer. Place the hooks to the inside of the third and fourth measurements so the hooks will be obscured by the hanging picture.
Hang the lip of the picture frame or wall mounts attached to the back of the picture on the hooks.
Erase all visible pencil marks.