Wow, good question. This made me think. When this all started almost everything surprised and shocked me, but the very first non physical shock was how confident and charismatic black men are compared to the other males in my life. (Mostly boys my own age, to be fair).
It's a given that size was shocking,
I think the most impactful surprise was me. I'm normally very Alpha myself, always leading and taking charge when it comes to teams or class projects etc. But when it comes to black men, I'm very submissive. They are my kryptonite!