Cautionary Swinger Story
It's important to keep in mind that swapping is primarily a social and very much couple-oriented activity. The ordinary social customs of meeting people and initiating a conversation are really not that different than at any other type of social gathering, and the process by which acquaintances become close friends is not that different either. The key social traits that tend to be appreciated in the community are responsibility, friendliness, flirtatiousness, open-mindedness, and most importantly stability with regard to one's primary relationship. Because it is meant to serve as such, I find myself getting aggravated every time I hear another swinger story of how a couple thought they were picking up a sweet and fun couple to interact with, and discovered that they are not even really together!
Same goes for newbies who inadvertently jerk around others while trying to decide just how far they are willing to go. As is the case with almost all human social endeavors, if you already know people in a particular community you'll probably be happier if you attend your first few events with these people so they can introduce you to others. If you do not like what you do not feel forced to participate. There is a good chance you might just be letting someone else develop different expectations. Waiting a little while and watching how others behave is also a good idea, as it is in almost any new social situation.
Remember to update us on your own swinger story!