The shaka goes clear back to the 1930's. It is a form of greeting meaning don't worry be happy, hang loose or aloha. You can see in almost all of the group pictures of missionaries they are "shakaing", is that a word. Bro. C. told us there is a story of a man who had his first three fingers taken off in an accident and so he would wave with his thumb and pinky up and that was how the shaka got started. Anyway, I just thought I would give you a little insight into the shaka.