When Dawson and Gretchen are talking in the bar, he says that he wants to bounce a quarter into the glass. She says that he'll have to use his own money, and she puts her hand into the glass to scoop out her quarters, but the glass is clearly completely empty.
When Pacey walks around the poker table to meet Joey, her hands shift from being in front of her holding the cards to being flat down on the table in between shots.
When Joey is being helped down from her seat on the dock, Jen's hand shifts from holding Joey's hand to being around her waist in between shots.
When Joey is being helped down from her seat on the dock, her cup changes from being in her left hand to being in her right one in between shots.
For most of the episode, Jack has his left arm in a sling. However, when he is talking with Andie at the party, his right arm is suddenly the one in the sling.
When Pacey throws Joey over his shoulder to leave the party she switches shoulders, and the door is on the opposite side of the room revealing the film has been flipped.