Greetings!

You know that when you greet someone (of the opposite gender) that you know (socially)? Where you know them better than a handshake, but perhaps not quite well enough to assume a hug? Isn't there that awkward moment you reach a hand to shake, and he/she opens both arms to hug, or vice versa? Then you both pause and reverse your positions, letting loose an awkward nervous chuckle.

Sort of like walking down a hallway and both you and an oncoming person almost collide while trying to avoid each other. And there you are, complete strangers ... doing the left-right-left stumble-shuffle dance. Finally, one of you stops moving, the dance is over, and you continue on with your lives.