When Miley finds Lily on the beach, Lily is meditating on a blue mat, which they walk away from but is seen in the background as the scene continues. Later, when Jackson arrives we can see that there is now a patterned towel laying over the blue mat, which then disappears and reappears a few times before the scene ends.
When Miley arrives at the beach to tell Lily what Jackson said about liking her, as the shot alternates from behind and in front, Miley's handbag keeps swapping from being on her shoulder to in her hand.
After the commercial break during the "Mack and Mickey in the Morning" show, as Hannah sits back in her chair her microphone swaps from her left to her right hand between shots.
When Miley, Jackson and Lily came home from the show and when she's about to tell them about each other's feelings, she has her left hand on her chest while gagging. After the cut, she has her right hand on the chest.