Everyday Truman is shown buying glamour magazines, and at first the viewer isn't told what they're for, but he keeps claiming that it's for his wife. Eventually the audience learns that he's using the faces of models to assemble a picture of Sylvia, the girl he wanted to marry back when he was young.
Made even better with the implication that he's going to go find her in the end. To be specific: Sylvia's overjoyed reaction to seeing Truman pull out the makeshift picture is a major Tears of Joy moment. Doubly so, since the last we see of Sylvia in the movie is her cheering when Truman escapes and running out of her house, implying that she's on her way to meet him at the massive structure that houses Seahaven.
A Deconstruction of such moments occurs in the scene where Truman reunites with his father. It's clearly supposed to be one of these for the viewing audience, and we see the behind-the-scenes work that goes into making this happen (music, camera angles, dialogue, etc). It works for most of the viewing audience, but then we see Sylvia watching in despair, and the effect is ruined as it becomes clear that this is just another cynical attempt to manipulate and control Truman and secure high ratings.
Another in-universe example: Truman and Marlon are sitting on the bridge and Truman's talking about his fears and suspicions. Marlon tells him to trust him, that he would walk into moving traffic for him. All this time, Christof's feeding him those very, supposedly heartfelt, lines. (One of which is about how he would never lie to him.) In a meta-example within the in-universe example, Marlon pauses when he says that he would never lie to Truman. Proof outside of the deleted scenes that he does care.
A very subtle one but still heartwarming. When Truman is crossing the water to escape the studio city, the viewers are all cheering him on. After Truman leaves through the exit door, every fan shown is high fiving and congratulating Truman for leaving the city even though it means the show is over.. It just shows that the viewers don't care about the show; they care about Truman.
Which is also the reaction of viewers of the movie.
There's also a small moment where Christof is trying to convince Truman to stay on the set, and while it's obvious he wants him to stay for the views, there is a small hint that he genuinely cares for Truman, saying how he watched him grow. He even strokes Truman's head through his monitor.
A deleted scene of Marlon finding a disguised Truman during the big search for him....and pretending like he didn't.
Here is the script of that scene:
EXT. HARBORSIDE - DAY
However, as he bypasses the entrance to a ticket box, he
hasn't bargained on coming face to face with another
straggler from the search.
MARLON. Truman freezes in front of his childhood companion —
Marlon instantly seeing through Truman's homeless disguise.
Truman glances nervously in the direction of the searchers.
Their backs to the two men, they are beginning their next
sweep. One shout from Marlon will give Truman away — he is
at Marlon's mercy.
Without a word, Marlon walks past Truman and rejoins the
Truman glances back to Marlon's retreating figure but Marlon