You all missed the real reason. Holding the hands behind the back allows walking and standing with a slight hunch forward. This relieves the nerve compression of sciatica, a common ailment of older people, especially men. It is possible that many who do this don't even fully recognize why they do it, but just that it makes them feel better.
FLASH Application. Online Application for an Insurance License. The California Department of Insurance (CDI) requires California resident applicants to first pass the qualifying license examination prior to submitting their license application.
Hook flash. Typical standard phone used with Centrex. Note the Recall button and the Message Waiting Lamp. Hook flash or flash (known in the UK as recall) is a button on a telephone that simulates quickly hanging up then picking up again (a quick off-hook/on-hook/off-hook cycle). 1  This action can signal the telephone exchange to do something. A common use of hook flash is to switch to another incoming call with the call waiting service.