Glove for Handshaking

Shaking hands = convey trust to others
Shanking hands wearing a reinforced glove = not that

I have a prescription wrist brace (not one of those cheap little elastic bandages -- this thing is a couple of pounds of steel and reinforced plastic which, if painted silver, would easily pass for a Medieval knight's gauntlet). I rarely need it (once every few years, I'll twist wrong and have to wear it for a day or two), but it's invaluable for when I have to go to a car dealership, insurance agency, etc., anywhere there's sure to be a glad-handing salesman.

The last couple of years, however, salesmen have become so aggressive, they'll grab my other hand and try to force me to shake! I've had to take to wearing one of those purple anti-contagion gloves on that hand.

If I recall correctly, showing the right with open palm and/or shaking hands with the right hand showed one did not have a weapon ready to strike. I suspect the right hand was used as most folks are right hand dominant?

A handshake and a salute were both to show your hand is empty, but a handshake has added value as a symbolic joining of your sword-hands, moving you up from "not a threat" to "we'll fight as one" status.

As a leftie, I've always liked being able to do the socially acceptable 'I come in peace' things while having a dagger ready to strike, but that's just my sinister nature.