It's an incredibly complex mix of intangibles.
She has to be smart, but not too smart
Funny, but serious
Spontaneous, but organized
the list goes on and on.....it's an interesting amalgamation of opposites that hits the right combination to click with our own intersting amalgamation of opposites.
Just like a job interview, you get one chance to show them how well you complement the company. It's an all or nothing shot that requires you to lay a significant portion of yourself on the line. Enough personality to get us interested, but not enough to scare the hell out of us