Two aspects of rotational motion of thermally excited nuclei are discussed. First, the schematic cases of ordered or chaotic motion of intrinsic and rotational motion are presented: discrete rotational bands, ergodic bands, damping of the rotational motion. Secondly, the strength functions of mixing of basis bands and of E2-transitions over one or two decay steps are discussed. The two-step E2-strength displays both a narrow and wide component, yielding different types of information about the basis bands and their interaction. Indications of the presence of a narrow component is found in energy correlations of consecutive transitions on displaced rotational bands of a three dimensional spectrum for the nucleus Yb-168.