Kicking her feet?
As in, swinging her legs back and forth over the ground, like pendulums, I believe.
Not sure if it’s culturally-specific but I think it’s basically intended as a (likely involuntary) body language display showing interest and excitement. She is so engrossed in the explanation of Naruto (or the individual giving the explanation) that she is not paying attention to what her feet are doing. And what they are doing is acting as an outlet for her excitement.
I couldn’t picture this without seeing her as either very very short or very very young. Don’t grown ups feet reach the floor?
Confidence and showing passion about stuff will get you a long ways
Best I can do is crippling anxiety and apathy for everything in life. Take it or leave it.
He must have incredible genetic abilities.
These are the tactics I use on forums. I explain things and try to make people like me at the same time. XD
At a dispensary? That probably helped his odds. Still impressive, though!