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How to climb a brick wall
Plan your route first.
Regular climbing techniques will only work if some of the grout between bricks is missing or if bricks are jutting out. Basically, if the wall is perfectly smooth, you're not going to be able to climb it with standard techniques.
Look up the wall, and see if you can find enough handholds and toeholds to get you up the wall. Try to visualize your climb up the wall.