Ashley - The word most commonly associated with the meaning of that gesture is namaste (the gesture itself is called something else - see http://en.wikipedia.org/wiki/Namaste
). It's pretty well recognized and understood everywhere. No reason to feel like a dork.
MyYMBAAAI moment for today: A client meeting notice pops up in Outlook, conflicting with a Tuesday appointment - the one Aikido class per week you are committed to being at, come hell or high water - and your heart sinks. And then you realize Outlook is only warning you that the times are adjacent, not overlapping, and you can breathe again.