Cassie was parrying more punches than she actually needed to, but she wasn't the focus here -- Tris was. She just had to remember her early training with Diana and Artemis and try to replicate it as much as possible.

"Good!" she said, still grinning. "I'm going to start punching back now, so keep your guard up! Nothing fancy yet, I want to make sure you have the basics, but keep it up and we'll have you doing something fancy before we're done here!"

She started throwing punches back, a little slower than Tris was throwing them so the other girl could adjust, watching her critically all the while.

"Don't step across your own leg when we're circling, you don't want to literally trip yourself up in a fight," she said. "And don't get too comfortable with this pattern, I am going to change it up sometime soon, you'll be really embarrassed if you block my punch into your own face."

...This was actually a lot of fun. Maybe she should tutor more people in fighting skills.