I guess since you are a girl and all, it wouldn't be too hard. Funny, I hadn't have too much trouble talking to guys.
I usually didn't try to skip, but I did a few times. Once, I just hid in the teacher's bathroom the whole period (no one ever went in there; it was perfect). Then I snuck outside, went down to the river behind the school, and walked around the woods. I ran into some rednecks hiding underneath a bridge, and they yelled at me. I never saw who they were, but one of them said he had a class with me and knew my name.
I tried to skip a second time later that year but got caught, fortunately by a nice teacher who just took me to class and made up an excuse for me for my period teacher. I didn't get in trouble.