Well, the whole handshaking started when MEN greeted each other. It symbolized that their right hand was extended in friendship and not on their sword, to be drawn.
Women did not need this assurance. You have so much to learn in the Ya Ya Sisterhood. LOL
*L* .. apparently I do
Up hear it's just a friendly greeting when being introduce to a person.
We don't do it all the time .. just is certain circumstances ...