Greetings
Men greeting Men – A handshake is appropriate in most situations. Handshakes are usually energetic and linger a little. To show additional respect, the handshaker may lightly grip his shaking forearm with the opposite hand. Men frequently hold hands with other men, and the handshake is frequently extended into this hand-holding. This has no bearing on their sexual preferences; it is simply a sign of friendship and closeness.
Women greeting Women – A handshake and/or nod of acknowledgment is appropriate in most situations. If you would like to show great respect you may also place your left hand over your right elbow/forearm when handshaking. Many times women will hold hands with other women, and often the handshake is prolonged into this hand-holding.
Meetings between Men and Women – Appropriate greetings depend on the nature of the relationship and region. A handshake is usually appropriate but it is best to wait for the woman to extend her hand, otherwise a bow or a nod of acknowledgment will suffice.