Everybody has their own method but this is mine and I thought this could benefeit others as well... The kit... Cornerstone N scale Santa Fe-style brick depot Tools needed... 1 toothbrush 1 Scarlett red colored pencil 1 Permapaque opaque pigment marker I've tried many different methods but this one seems to be the easiest to "undo" if you mess up and need to try again. First, you need the kit with bricks and since this one has been sitting under my layout for quite some time, let's rip off the plastic and give it a go... Next, you need the supplies as mentioned above. The next three pictues may look a little strange but that's because I used the macro setting on my camera looking through a lit magnifying glass (hey! I said it was N scale:mrgreen. This is what the shiny, plastic, brown, brick wall looks like before any applications of any kind... Now, take the white opaque pigment marker and color in all the mortar joints. I found this took several applications (2-4) to achieve the level of white desired. The nice part about this step is the opaque marker is water soluble and if your not happy with the results, simply scrub off the white, with the toothbrush, under water and start over. Finally, take the colored pencil and evenly color the bricks to the depth of red that you prefer. It helps to have a hard color pencil as softer ones tended to fill in the mortar joints. Inevitably, some red coloring will end up in the joints and that is what the toothbrush is for. Once you have finished applying the color, take the toothbrush and clean out the mortar joints for a nice clean look. There you have it!... quick and easy bricks. Once the model is completed, I will come back and apply weathering as well as spray the entire structure with an application of dull cote to remove any glossy finishes that may remain.