shaking hands, n.Definitions

Shaking hands is a premeditated attack on someone else's immune system

Shaking hands is holding someone's hand for like one second.

Shaking hands is just professional handholding

Shaking hands is just close-contact waving

Shaking hands is just cuddling for businesspeople.

Shaking hands is a sign of trust, with both participants immobilizing their dominant hand.

Shaking hands is just nature's way of spreading germs and killing off the friendly people.