The idea of Samuel as charming made her laugh, though the sound wasn't cruel. It was a laugh of surprise and bewilderment, as if she were observing a very wacky scene in a movie. "Yeah, okay," was all she said. She was good, though - didn't roll her eyes or anything.
As he pointed at her, specifying the sort of girl he wanted to punch like, she snorted. "Well I punch like any girl," she said, straightening up slightly. "A girl that was trained well by another girl." Her tone was both teasing and serious, equal parts of each. After all, he clearly understood that she wasn't a lost Pippi Longstocking in the big, scary gym.
In a rare moment of kindness, she decided not to further attack his pride. Instead, she nodded. "Well it's always good to practice," she said, slurping up more of her smoothie. "And since you are less familiar with bare hand-to-hand, it'd be my pleasure to help a member of the armed forces."
(OH MAN YES. Ahahahahaa Riley says "why you no want to arm wrestle?" With a big puppy frown.)