hus my wife and I have be try to get the shakeweight to shake . maybe we need practice or help . we be just look for a tool to wake we up in the morning with a little exercise , so far no good . so far its similar to shake a heavy piece of wood . where be the shake ? we would love to hear from someone who know 's how to work it . be there a trick to activate it . we do realize it do not shake by itself , but once you start it , be not it suppose to continue shake ?