Disclaimer: I don't own Faramir. If I did, I wouldn't have let them mess him up in the movie. I also don't own the Hobbits or their ill-favored guide, the Ring, or anything else you recognize.
He watches them melt away into the distance: two small figures in gray and their ill-favored guide. They are taking the Enemy's weapon into the midst of the Enemy's stronghold, and he has helped them on their way. It is likely that the Ring will be taken, all too likely. For a moment, now that they are out of sight, he allows himself to imagine Gondor at peace, the White Tree flourishing, and himself as the wise and benevolent leader. Surely if one's heart is right, the Ring would have no corrupting influence over it's wearer. But no. He is a judge of men, and of halflings he can make a guess. Frodo is determined to destroy the Ring; his heart is true. And yet it is wearing him down, slowly taking him under its power, and Faramir's heart tells him that the halfling will need strength outside of himself to cast it into Orodruin's fire. But where that strength might come from, even he cannot guess.