I studied this briefly, it's basically what diffeent eye movements mean. The one's that apply most to us are down and to the left, which means remembering something (if you're opening a set and one of the girls is busy doing this, ask her whats wrong, when she pretends like nothings wrong, reveal your knowledge! Tell her that because of where her eyes were facing she's remembering something, probably relating to what your saying, people will be amazed!)
Also, down and to the right, it means they're talking to themselves in their head... probably asking "did I leave the iron on?"
Lol

it's all good for neg's