As you move the pointer over a rotation handle, it changes to a round arrow to indicate that you can rotate the shape.
When you use the Text Block Tool to rotate a text block, you can freely rotate the text block with your mouse by doing the following steps.
Select the shape or text box you want to rotate.
Click the drop-down menu next to the Text Block Tool on the standard toolbar as in Figure 7.5.
Click and drag the rotation handles on the text box to freely rotate the text box.
Click the standard mouse pointer afterwards to release to rotation tool.