How do u learn how to kiss? Major girl crushes?

Hi Im a teen girl thats never had a same- experience. I've also never French kissed a boy before, and I want to know how. When this new girl (that is quickly becoming my friend) found out, she offered to teach my and I don't think that she is kidding. Also, I do not think that she knows that I am becoming totally smitten with her--she is just so smart and beautiful and witty and clever and Y! I want to take her up on the offer, but am afraid that she will say "OMG I WAS KIDDING", that if she agrees that I will not be able to control myself around her, or that I will make a FOOL out of myself... But I really want to learn how to French! How do most people learn? Are these normal feelings? Am I 100% ? (I also have a bf that LOVES s but I do not plan on cheating on him; we made an agreement that we could each kiss one other person; we are not THAT serious yet). Anyways, could u guys help me decide what to do and help answer some of my questions, too? THANKS