The “Signal for Help” is a simple gesture—display your hand, palm out, then close your fingers over your thumb—but it could save your life.
Source: LifeHacker – Learn the Discreet Hand Signal That Could Save a Life
The “Signal for Help” is a simple gesture—display your hand, palm out, then close your fingers over your thumb—but it could save your life.
Source: LifeHacker – Learn the Discreet Hand Signal That Could Save a Life