See it; say it!

What are the communication rules associated with meeting someone in a business casual setting in the U.S.? It starts with nonverbals and then sometimes progresses to verbal interactions.
First, we attempt to open a channel of interaction by making eye contact. Edward T. Hall, famous Anthropologist, notes that in the U.S., if you sustain eye contact with someone for longer than 3 seconds, you are either going to kill them or make love to them. So typically we make shorter attempts at eye contact, say around 1-2 seconds.
If eyes are met, we offer a look of interest, typically involving raised eyebrows, a questioning expression, and often a smile or friendly overall disposition. And we close in. That is, we either step toward them or lean in a bit. A split second later, we say something to begin the conversation.
It is a dance or a parade, as I have called it in previous posts, that if done right, can lead to successful interactions with people out there who need to know you and what you offer them. And it also allows them to reach out to you with what they do. Now that you have been told explicitly what you have always known implicitly, go put your two-step into motion. The more you practice, the smoother you'll become.