Catura (clever)—slightly moving and excending (?) the eyebrows in a pleasing manner. Kuñcita (contracted)—slightly bending of eyebrows one by one or the both at once.
Now I shall tell you about the purpose of the sentiments and emotions in these (acts), in anger, in doubt, in playfulness, in sport and the like, and in the natural (state).
Utkṣepa —in anger, deliberation, passion, sportiveness, in seeing and hearing only one eyebrow is raised, and in surprise, joy and violent anger both the eyebrows are raised up.