The first example of quilting that I think would look good in the "bricks" is called back and forth. With this one you start in one corner of the brick and go straight across, and then turn, and go across and repeat. Very easy and fun.
Another option you can do is called "wishbone" with this one you start in the top corner and angle slightly, then when you get almost to the opposite edge of your brick, make a loop, just a small one, and angle back to the other side. Repeat.