In nonverbal communication, looking at the other person while you are speaking is considered a "power" position, where looking at the other person while he is speaking is considered submissive.

Playing with hair and jewelry is also considered a "submissive" posture, especially if one is tilting one's neck to the side in order to do so.

I've had two male T's and neither one sat in that traditional male posture, both cross their legs and point their crotch away from me, their upper body relaxed and aligned with me. I do the same, except I like to sit up on the couch with my back to the arm, in cross legged position or some variation of lotus.

In general I do not like men to sit across from me with their crotch pointed at me. You may interpret that as you will, Dr. Freud (said to no one in particular).