Those with a sustained practice cannot avoid the message that is repeated by nearly every teacher from every school of yoga and incorporated into so many of the physical postures: Open Your Heart.

FORBES: Lead with Your Heart

That's what presidents literally did for 100-plus years until Woodrow Wilson resumed Washington's practice of delivering the SOTU message in person.

FORBES: Dangerous Thoughts

With practice, whistlers can convey any message.

UNESCO: Culture