Mark the hole location on the brick, not the mortar
Use a hammer drill with a masonry bit sized for the anchor or screw
Drill straight into the brick to the required depth
Clear dust from the hole
Insert a suitable masonry anchor or plug if needed
Align the item to be mounted
Drive the masonry screw or screw into the anchor with the correct driver
Tighten until secure, but do not overtighten
Use stainless or coated fasteners for outdoor use
Avoid drilling into damaged or crumbling brick