Mark the spot on the brick where you plan to install the picture hook by placing an “X” with a pencil.
Drill a hole into the brick using a masonry bit large enough to accommodate a wall anchor, which is a sleeve that gives a standard screw additional grip.
Pound the wall anchor into the hole with a hammer until it’s inserted fully.
Attach a screw-mounted wall hanger into the wall anchor so you can hang the picture.