Continuity mistake: At the very end of the episode, Kyle, Ethan and Kat are standing in a line looking at Lina and Richie. On the close up shot of the three of them, Ethan is standing next to Kyle, but when the shot is from above, Kat is now in between them, with no time to have moved.
Audio problem: In the scene when Kyle and Aaron are talking to Holly's dad, once Holly's dad has left and after Aaron has said wow, Kyle starts his sentence with the word "later", but if you look at him, he isn't actually saying anything. Then when the camera switches so it's on him, his mouth is in sync with the rest of the sentence.
Continuity mistake: In the scene where Ethan and Kat are sitting outside the yogurt place, talking about how Kat didn't order anything, the bowl and spoon that Ethan has in his hands changes from being held to being on the table and back again repeatedly between shots, with no time for him to actually put it down or pick it up.