And how long until someone deciphers all those hieroglyphs under the Temple?

What lies in the shadow of the statue?
.

When the weird local sporting an "I Shot JR" sweatshirt greets Ted and Dougal.

genius line readings
"Oh, hi Mark."

Ilana at the Airport
When Ilana and Sayid are at the airport, and Sayid asks if they're really going to Guam, the way Ilana responds with "Where else would we be going?" really struck me as a clue that she knows more than she's letting on (unusual behavior on Lost, I know).
Maybe it was just the actor's facial…

Someone on Lostpedia pointed out that the figure was not visible on a non-HD, non-widescreen screen. So it's possible that, sort of like the helicopter at the beginning of The Shining, the figure wasn't meant to be in the frame.