Kathyrn, its been mentioned by at least one GG here that what we characterize as essentially female or essentially male mannerisms and movements can vary immensely from one individual to another. And perhaps very masculine mannerisms may not be seen as such in an otherwise feminine person. Still, I think there's something to be gained from observation. Certainly, you may pick up some good techniques from videos, but also become a student of people... Take a little time now and then to watch women and men as they pass by, as they sit down for dinner or order movie tickets. You may pick up some subtleties that can help you achieve what your seeking.