When your walking down the street in the middle of a crowd, do you ever ask "who is next to me?"

The person beside you could be a Wall Street professional, and the other a big name realtor.

People go about their day with personal intentions.
They interact with those in there interest and relations without paying attention to those they'd consider strangers.
Imagine taking a ski/snowboarding trip and at the lodge hotel there are 13 other individuals amongst the 4 in your entourage. Over the course the a week you may begin to connect with these individuals personally as you all shred the slopes.
In the midst of this connection a social bond is formed. After the sense of familiarity is established business conversations will seem more personal.
Living in a capitalist society networking is one of the most important facets of a business. CEOs praise business networking for improving the success of their companies.

One of the reasons I joined this site was to expand my networking abilities and possibly create long lasting connections.
Every time I'm in a place I'm unfamiliar with I try to establish connections with those in the local areas. By doing this I'm establishing another linkage in the chain of networking, while also becoming familiar.
You never know who your standing next to or interacting with. So it's always best to spread positive vibes and have good intentions.