I'm a 17 year old bisexual girl, and I want to flirt with other chicks. Please help?

I really want to experiment. I've never been with a girl and I really wanna try it. How do I flirt with other bisexual or gay girls? I have a few friends that are Bi, but I'm not really sure how to tell with other people that claim they are straight. What are some good flirting tips? Please help I am very shy and still closeted. I've only been with guys and I always found flirting just so awkward and humerus. I am still a virgin but I'm beating depression and my libido is coming back like the Chicago fire!