You're walking down the street. Your eyes are looking forward and you notice a person coming your way. You prepare to say "good morning," "hello," or something similar, only to have the other person drop their eyes to avoid contact.
I think we should simply do away with hand shaking altogether and adopt the prayer salutation. I'm all for bringing out our inner Buddha and showing it off, and a good way to do that is by how we greet each other each day.