Lyrics:

When a man raises his hand
Am I correct to understand
He means Hello, Stay back, or Danger
Watch Out!

When a man extends his arm
Is it delight or to alarm
To signal friend, foe, or stranger

And when he reaches for the sky
As we stare and wonder why
Does he reach to show the way
Or will he dive

Encoding signals is a major skill
It can lead to desires fullfilled
Or it can lead you to lose your very life
Lose your very life

Raise your hands
Raise your hands
Raise your hands

I see the signals
The piston pumping