Man greeting Man - Men shake hands when greeting one another and maintain direct eye contact.  At a first meeting a firm handshake will suffice and is sometimes combined with slight touches on the arms and/or elbows.  Good friends and family will engage in a hearty hug  which is sometimes combined with a few firm slaps on the back. 

Woman greeting Woman- At a first meeting, a light handshake will suffice, sometimes usually accompanied by a slight nod and warm smile.  Friends generally kiss each other once on the cheek. 

Man greeting Woman-   At a first meeting a regular handshake will do.  Friends, family and long-time acquaintances will share a light kiss on each cheek which consists of touching cheeks and making a slight kissing noise.  This is usually accompanied with a touch on the arm and shoulder and in some cases a light hug.  It is best to avoid overly direct eye contact during initial meetings as it may be misinterpreted.