Why do people shake hands?
In very early times, most men carried weapons and used them in their right hands. When a man wanted to make friends with another, he extended an empty right hand.
Then, each of the two took other's right hand and held it firmly. Reaching for a weapon was impossible.
Next, they tried to remove any weapon in each other's sleeve. So they shook their hands up and down. After they finished shaking hands, they became real friends.
Hi, DuHast.
Thanks! : )