The Masonic handshake is a symbol used by the Freemasons society members for social purposes as a form of recognition through which members identify each other. Masons press their thumbs against the space between the first and second knuckle joints of the first two fingers of each other's hands.
The Masonic handshake is also called the Shibboleth, with various symbols depicting different levels of the society. Different variations of the Masonic handshake exist and include the grip of an Entered Apprentice, the Masters Grip, Pass Grip of Master Mason and Real Grip of Fellow Craft.
One of the commonly used and most identifiable Masonic handshakes is the grip of an Entered Apprentice, in which members take hold of each other's hands as they would in an ordinary handshake and firmly press the top of the thumb against the first knuckle-joint of the first finger. By reciprocating the grip, members can identify each other.