You can be vulnerable at your strongest. A slap can feel like a kiss, and a kiss can feel like you've been hit. You can be brave when you're weak, and weak if you hide behind bravery. It depends what it's costing you. I asked my subjects to express vulnerability or strength when I was shooting them. The funny thing was after shooting, you couldn't tell which photos reflected which, because it's subjective.
What do our bodies position read- as strong or vulnerable? Do our eyes look innocent and lost or do our gazes hold strength.