Obviously, we'll try to find a way out of there and back towards civilisation.
He'll probably deduce which direction to go to, using one way or another.
Haha, that's if I can do it. Otherwise, yeah, we'll just keep walking. You know, the Cheshire Cat says - basically, I don't remember the exact wording - that if you keep on walking, you will eventually get somewhere.
And if no-one shows up, we'll try to leave signs that we were there, and that we needed rescue.
And if we were stranded on an island with no hope of escape, well, we'll probably just build a hut or something.
LaRe An omnivorous reader with a strangely retentive memory for trifles.