In this episode, Joey tries to hide the fact that he is stealing food from Monica and Chandler. However, he is very open about eating their food in every other season, and they are also very open in knowing that he DOES steal their food.
While talking to Ross in Central Perk, Rachel is holding a cup of coffee with both hands and then sets the cup onto the table. However, in the next shot she is again holding the coffee cup with both hands. It would have been impossible for her to have picked it up again so quickly.
In "TOW Old Yeller Dies" (2.20), Phoebe talks about how when her mother was still alive, she would turn off the TV during sad endings of movies, and then tell Phoebe some alternate happy ending. In that episode, "Bambi" was one of the examples which she mentioned which had a happy ending to it. In this episode, however, part of the gang (including Phoebe) is watching "ET" and they're crying and talking about how sad it is. Then, Phoebe mentions that "Bambi was sadder because she was crying "for three days after that movie [Bambi]. No, wait, two 'cause on the third day, my mother killed herself..."