2) Handshake: Touch can be a big part of body language, get it wrong and you can end up with a black eye or dismissal—get it right and you can literally gain the "upper hand" in a business transaction.
"For most parts of the world, a handshake in business is the norm and just from that you can get an idea if the person is being dominant and aggressive or passive," Hoppe said.
One word of warning: Watch out for the "power play" that can take place.
Simple observations such as a limp or firm handshake are easy. Watch out if when shaking someone's hand the other person tries to turn the handshake so that their hand is on top. "This is a power play," Hoppe said. Most handshake power plays are sub-conscious but occasionally you will find that in order to appear submissive someone will willingly give you "the upper hand."
Also watch what the "free" hand does in a handshake. Does the other person use the second hand to shake your hand or to pat your other arm?
"The higher up [your shoulder] the free hand goes, the bigger the power play," Hoppe said.
George Bush and Tony Blair were a classic case of touch power play, for instance. "Who would pat the other's arm higher up or who would enter a door first was always an issue," Hoppe said.
Just one more thing to remember. Don't hold a drink in the hand you use to greet people. "All people will feel is a cold, wet hand," Hoppe said. "That won't give a good impression."