I agree with you friend. Never a good idea to comment on a women’s figure that you have just met. First off, I don’t think it was probably the word “full” that first struck her the wrong way. Body image is a very touchy subject for so many women. Its too hard to say something wrong and have your words taken the wrong way.. the same goes for the other end of the spectrum too.. being too forceful about how sexy a girl you just met is might make her think you are only talking to her for one reason.
Its probably way better to start off complimenting her about her shoes or her hair or even her eyes. She will still feel noticed and you wont run the risk of another slap in the face. Remember the best way to grab a girl’s attentin is to listen to her, and ask questions, pretend like you are interested in anything that she is willing to share with you, even if your not!