Meaning of the hands hidden under the legs
I just finished a coaching session with one of my body language coaching clients and he asked me about a particular gesture cluster. He sat with his legs crossed and put out both of his hands with the palms down and then wrapped the top of one hand under inside his leg on the right and the top of his other hand inside his leg on the left. I said, "If a woman suddenly went to that position I would read it as her feeling uncomfortable sexually. Perhaps a man is coming on to strong or is teasing with her sexually or she feels sexually threatened by the situation. It would be unusual for a man to do it, but if a man did it would indicate his "manhood" was threaten. He would be indicating that he feels threatened an vulnerable at a deep level. A similar gesture is made when someone stands with their hands in front of their private parts in what is commonly referred to as the fig leaf posture.