How do you star a quescion

I was just trying to star a quescion and I couldent figure out

I just stared you question by clicking on the little blue star (labelled "interesting") beneah your description.
By the way, i love how you put this question in the Space and Astronomy section (Stars, Starred, hehe)

Click the little blue star. Right there on the bar below the question.

Click on the interesting tab from Action bar
Thnx!