Brick walls are strong, stately and good insulators. Compared to wood or tile, though, they can be pretty difficult to stick things to. The most common method for attaching something to a brick wall is to drill into the brick itself and insert a hanger. If you don't want to go to all that work and merely want to stick something to a brick or to a brick wall, you will need a strong adhesive. There are only a couple of glues that are rated strong enough to use with brick: Gorilla Glue and Rhino Glue.
Clean off the brick surface and the object to be glued to the brick. Use a rag or a broom to get the brick clean. You want to stick something to the brick itself, not to the dust settled onto the brick. For Gorilla Glue, wipe some water onto the brick with a damp rag before gluing.
Cut about 1/4 inch off of the top of the plastic glue cap.
Spread a thin layer of glue onto the brick by gently squeezing the glue bottle over the brick. For both Rhino Glue and Gorilla Glue, a thin layer is more effective than a thick one. For Rhino Glue, proceed to Step 4. For Gorilla Glue, proceed to Step 5.
Hold the object to the brick for 30 seconds. It should be successfully stuck to the brick already, but the glue will continue drying and getting stronger over the next few hours.
Use a clamp to hold the object to the brick. Open the clamp, place it over both the brick and the object, tighten the clamp back up. Leave the clamp on for at least one hour.
Rhino Glue may be more effective at gluing things to a brick wall since it does not need to be clamped while drying.
Keep these glues away from the skin. Wear gloves while gluing. Use warm soapy water on skin to remove Rhino Glue. Use a rag with paint thinner for accidentally gluing with Gorilla Glue.