Step 2: Painting the joint color
I gave the whole area a good coat with the light tan, and then went over it lightly with a darker tan. The darker color has a texture so I rubbed it with my hand as well as a cloth rag to get it to smooth out a little. If you barely press the nozzle on the darker color the paint will "sputter", this adds some nice texture almost like sand in the mortar. Just try to avoid blobs and splotches in your paint. If you mess up, just re-coat with your base color and try again. Bricks and mortar are hardly ever perfect with solid single colors, so variety makes it better.