How do you get girls to like you when you have no experience?

I'm a senior in high school and I haven't so much as touched a girl. I was homeschooled when I was younger so I never even had the playfull puppy love that a lot of middle schoolers. It used to just be in the back of my mind, but now that my hormones are flaring at full throttle I can't ignore it anymore. I'm kind of the big tough badass with the guys, but girls don't seem interested in me even though I try to show a softer side. I would say that I'm like a 7/10 in physical appearance so assuming that's the case I should have no real problems there. Help me out. What are they looking for exactly?