The act of putting yourself out there, of being outside of your abilities a bit. You take your experience, your expertise, and you venture a little bit beyond them. And some of what you know is applicable, but you've always got to keep in mind that whatever frameworks you're bringing to bear don't necessarily apply.

I like being this way - a bit over my head. But I'm at my best when I'm honest with that fact.

At the risk of sounding naive is a fairly good way to communicate this, in certain contexts.