Talking and Body Language
Hey Mitch,
Welcome to the boards! There are way too many fundamentals, so I'll just cover two I consider highly important to work on this very second.
Body Language, your non verbals such as your eyes, posture, and the faces you make.
and
Talking, this includes, opening, closing, how much you should talk, and not letting the interaction go stale/boring.
Body Language:
You never want to walk up to a girl with your head looking down at the ground. Instead walk with your head parallel to the ground with you shoulders back. This will give you a confident look as you walk around, people will notice. However, don't over do it, like bending your back to far back. The idea is to have your back straight. This also covers walking, you can either go for the John Wayne (cowboy walk) or a Male Model runway walk. Both work very well, find the one you like the best.
Now, you never want to stare intensely at a girl maintain a little eye contact but glance away from time to time. This way you don't come off as creepy or weird. Another thing to is listen, use head nod instead of frequently saying (uh huh, gotcha, okay). You want to use though only a little this way she knows your listening.
Talking: Use deep diving and ask interesting questions
You: What do you like to do for fun?
Girl: I really like to go dancing.
You: That's cool, what kind of music do you like to dance to?
Girl: Pop and club music..etc..
You get the idea, the point is to focus the conversation on her and get to know her. You want to take the mysterious, cool, and sexy kid approach. You also never want the conversation to go on for too long, so you want to close it.
You: Hey, I got to get going to my next class. Take care
You always want to be the first to end interactions. There are tons of things about fundamentals but this should get you started. Anyone feel free to add input to my comment.
Just Dave