"After You Shake Someone’s Hand, See If They Do This Afterward."
A handshake can be used to interpret a lot about a person, but there might be even more of an exchange of information going on than you realize, according to a recent study.
The next time you shake someone’s hand, see if they reach up and touch their face at some point shortly afterward. Scientists from the Weizmann Institute of Science in Israel found that some people are unconsciously sniffing subtle chemicals from the other person’s hand.
I occasionally get a guest at the hotel that wants to shake my hand, and it always seems to be the grungiest, nastiest individuals that do it. I'll usually finish the check-in/checkout process, then go to the restroom to wash my hands.
Even worse, though, is one of those individuals that pulls an ancient, smelly wallet out of his back pocket, licks his fingers, and then counts off the cash to pay for the room, rather than present a credit card. One of these days I'm going to snap and either hold out a tray for him to place the money on, or don housekeeper's gloves to receive it. Disgusting!