We’ve all watched them, in wonder: the happy-go-skippy social butterflies who are on everyone's must-invite guest list. They love the world and the world loves them back. What's their terrible secret?

To have fun, you've got to be fun. Sure, sometimes we are just not "in the mood" to be social, but I know you know how to fake it. And here's the weird part: Scientific research proves that putting a smile on your face will actually conjure the desire to feel like smiling. (And we know that smiling, like yawning, is contagious, so do it.)

Do you have "blank canvas" jitters when walking into a party? So hide behind a camera. Taking snapshots is one of the quickest icebreakers in a social situation. And the cool part is distributing your catch later. Photos are the most cherished heirlooms, and with digital photography, you've got a billion chances to get the most amazing shot. The key is to avoid being a nudge, constantly telling everyone to "get together." Just hold the camera above the crowd and snap wildly, randomly, intensely—the fun is seeing what you get when you upload the shots.

Claim ownership of a "specialty" you love to whip up and keep the ingredients on hand. Whether it's after the kids' baseball game or the place for the late-late, after-after party, make your address the crew's place to be (last-minute guests always welcome).

A sudden attack of shyness when you don't know a soul in the joint is quite possibly the most universal human experience. But walk through the door expecting to have a great time, and you will. Prep yourself for every situation by reminding yourself that something new and surprising and amazing can always happen—like falling madly in like at first sight with a new friend or simpatico business partner or finding that missing clue to some mystery of the world that you're trying to solve.

As in, play a social game for fun, leave obligations behind and have a ball! When I was a kid, my parents told me to pick an instrument and pick a sport. It wasn't about learning how to win or lose or building college application activities, it was about getting me involved in the world, involved with people, building social experiences, building relationships.

I know, we love the sound of our own voices, but once in a while, one of our friends will really need us just to listen. Sometimes the conversation might be a lot of give and take, advice and speculation, soul-searching and puzzle-solving, but sometimes you just need to be a giant ear for an hour.

No, not things that cost a ton of dough. I mean, give the things that cost you very little but are of massive value to others. Starting with compliments, all the way up to giving your time to your community. You'll feel like part of something bigger, something wonderfully social.

Some of us are addicted to Twit-book, and we know who we are. For those on the opposite side of the aisle, those who live in perpetual fear and suspicion of socializing on the interwebs, I'm here to say: Relax. Once upon a time, it may have been cool to resist the three-times-a-day invitations to join. Facebook and other social media won't replace actual, live, in-flesh human interaction. In fact, they can enhance your offline social life because nowadays that's how a lot of people are sharing important information. If you're shunning Facebook because you think it will kill your social life, you may be killing your social life.

If you learn how to make one cocktail in this lifetime, make it a martini. It's required knowledge for a passing grade in Western Civ 101, up there in the canon-lands, along with the little black dress, a single strand of pearls and the original icons of elegant style, the Ladies Hepburn (Katharine and Audrey).

Strap in, I'm going to write something extremely controversial here: Yes, you can thank someone with an email or a phone call. We all know traditional thank-you etiquette calls for a handwritten, snail-mail note, but I've seen it happen all too often: You keep meaning to find a nice thank-you card or choose some pretty stationery. But something comes up: a crisis, some project at work, football season. And time passes, as it does. Before long, it's too late. And then a chance encounter with the would-be, should-have-been recipient of the phantom note sends you slinking into the shadows, quivering in breathless social shame.