Once your surface and surroundings are prepared for brick slips (see our previous internal preparation, or external preparation video as required), you can start getting the slips on the wall! You'll need to cut the slips at the end of the walls - always try to finish on an internal corner to hide the cut edges and keep athenticity.
You may want to gauge out the wall to try and finish on a full tile, a few mm on the odd mortar joint won't be too noticeable.