In Photoshop CS6, there are a few ways to rotate brushes. The first way is to use the Rotate brush tool. To use this tool, you need to select the brush and then click on the Rotate button. The Rotate button will rotate the brush in a clockwise direction. The second way to rotate brushes is by using the Mirror tool. To use this tool, you need to select the brush and then click on the Mirror button. The Mirror tool will mirror the contents of the brush onto another object or layer.