A Somewhat Serious Question

Y'know how when 2 people start talking to each other at the same time one of them yields and one of them keeps going?

I have a sister who is NEVER the one to yield thus causing this to be a major point of contention in my own head. Sometimes what I have to say might be more important than what you have to say, even if it is just to me.

But I want to know if it means something about your personality if you are the yielder or the keeper goinger.

What are you? What do you think it says about people (you or the other side)?