Do you guys like a lady that just keeps to herself or tells it like it is when it's nessessary?

My best friend isn't afraid to speak her mind. She tells it like it is and has zero tolerance for jerks. She only tells it like it is when it's necessary. I guess that's probably why she attracts a lot of guys. I teens to keep it to myself, beat around the bush and afraid to voice my opinion. I guess most guys find me uninteresting because I am too nice and always agreeable....sometimes.