So far she was liking what she was seeing. For having been Vader's apprentice, Galen was skilled. She'd never put much stock in Vader, but she was all ready liking Galen. But she knew she also needed to know his other talents in the Force just so she wouldn't try teaching him something he all ready knew. From when he'd first entered the building, she could tell he knew how to hide himself within the Force, which actually was a trait she herself had learned not that long ago. But she had other things she could teach him, more from the light side.
When he leapt over her, Mara quickly spun around then somersaulted under his attack, coming up behind him then renewing her attack. It had been an excellent move on his part to try and throw her off-guard, and to that she applauded him. But Mara was very quick and agile, able to dodge and move quickly.