Nice idea about the hand waving. I do shake hands with the folks I know fairly well, IF they happen to be within hand-shaking distance and that is rare. The rest? A little hand wave (my right hand) and a smile work for me, a nod to strangers.
I hate to say this but if a handsome guy HAPPENS to be near me ... I will shake his hand...and his wife's if she wants. Am I a bad girl?
Ah, resisting temptations while in church.... :)