How To Shake Hands

“[U]se the right hand; a complete grip and a firm squeeze (but not too strong); a cool and dry palm; approximately three shakes, with a medium level of vigour, held for no longer than two to three seconds. The handshake must also be executed with eye contact kept throughout and a good natural smile with an appropriate verbal statement, according to the scientist.”
-Geoffrey Beattie, head of psychological sciences at the University of Manchester (UK), has developed a mathematical formula which solves the age-old procedural questions surrounding the metacarpal salutation.