bisexual

after moving out of my small hometown and living on my own, I've realized where I stand with my sexuality. I just need some help/advice. 
how do I put myself out there/get the nerve to strike a conversation with another girl? 
how do I tell my friends and family (or do I need to tell my friends and family if I'm not seeing anyone of the same sex) ? 
Any words of advice or encouragement you have to help me take this next step would be really appreciated.