Americans more personal space than other cultures. if you try to get too near an american during a conversation,they will feel uncomfortable.if an american steps back,then you are standing too close to them.men tend to avoid hugging and even women do not hug and kiss as much as many Europeans. formal greetings in America involve a quick firm handshake and there isn't much physical contact. However, people smile at each other and make eye contact. Winking is relatively common and means friendliness,or 'I'm kidding. When Americans meet for the first time they often ask 'What do you do?'This is a normal question and is not considered intrusive or personal.