woo woo! You've gotten me riffing here, and I like it!

HeHe :) Me, too.

I tried to cover up this topic once in this posting.

It is the art of not getting too involved with something and not too little, of doing the task at hand loosely from the hip. When I took the tray full of wobbly coffee cups, full of glasses with drinks across the uneven lawn to the guests at the table, managing to flirt with some, simultaneously noticing raised hands and not spilling a single drop. Such moments are gold. Other days I would look at the tray and try not to spill anything and of course the liquid would flow over.
When I was throwing the bar at a disco, it was similarly instantaneous. I spontaneously handed out free drinks to my guests, handled all kinds of bottles like a virtuoso, danced to the beats, laughed, had fun and was the queen of the bar. I managed to do things that I would otherwise have had to practise. It was the absence of too much concentration on one thing, while at the same time being alert to many things at the same time. Hard to describe.
Oh, one more example. Throwing the ball into the basketball hoop from behind. You mustn't want it too much, then it won't work. You don't care, but not completely. LOL

One can dodge each moment skillfully with spontaneity if they are fully present as themselves.

Yes.
And no. The asian philosophy is really funny, I think. "Fully present" can also mean to be too aware of oneself. Then the opposite happens. As there is also no such thing as "oneself" ("being themselves"). More, like you mentioned it here:

Being fully present includes heightened awareness, connecting to your source of all things.

The source is always there, only, it will not let you enter it once you want it too much. HaHa! :D

that if I have any doubt, I don't act.

That's actually a very good advice.