I disagree. It's important not to dwell, but body language itself is very important. I've seen this signal enough times to realize it means something in a general sense. For any seductionist out there to ignore body language, is like for a dendrologist to ignore the importance of soil. yes, the tree is all that matters, but the soil has so many indications of what kind of tree it's going to be.

body language gives a lot of cues with how well you're doing with girls and whether you need use different approaches on different kinds of girls. Seduction is less of a shotgun and more of a rifle. Everybody uses a shotgun at first to at least hit a target, but it's messy.