Did you notice how much Yang's fighting style has changed? She said back in Season 2 that she was a thrill-seeker. It showed; she would grin and dive headfirst into every fight, clearly loving the adrenaline rush. She would only hesitate when Ruby was in danger too. But now? Now she _thinks_ before acting. She still doesn't hesitate, but she also doesn't rush into a fight. Her expression is completely serious as she stays focused on the task at hand. But the thing is, Yang used to be, almost literally, an adrenaline junkie. She lived for the rush, and it cost her an arm. She doesn't love it any more; now she hates it, maybe even fears it. But if you're gonna fight, the rush is gonna come. Once the fight is over, she needs a moment to center herself and let the adrenaline die down. I think that's what the shaking hand is about. It's not PTSD; it's dismissing the post-combat jitters. It takes her a few moments, but in time she'll learn to do it faster.
How to know what different between teacher and student realtionship or friends and lover~ Your Teacher or you/your friend will never sleep with someone are baker while sleeping in bed.
