The amount of wetness on Joey's shirt changes from shot to shot.
When Dawson is talking to Mary Beth in the cafeteria, the first two shots show her holding a book and a sandwich. The shot changes again when Dawson is sitting down, and suddenly she is not holding the book anymore.
This is supposed to be number 11, while the Double Date one is number 10. I reported it and even sent a screen shot to prove it, but they never changed it. It doesn't even make sense that this one is listed first because in Double Date, it's clearly Cliff and Jenn's first date, not this one.