The One With The Prom Video - S2-E14
Trivia: The first day Courteney Cox donned the 'Fat Monica' make-up and costume, Matthew Perry walked right past her without recognizing who she was.
The One Where Eddie Moves In - S2-E17
Trivia: The director of the "Smelly Cat" music video was credited as A Chase. This may have been referring to Adam Chase, executive producer for most episodes, and writer of that particular episode, among others.
The One With the Baby on the Bus - S2-E6
Trivia: Phoebe loses her job as a singer at Central Perk. As a protest she sits outside singing for money. Rachel comes out to give Phoebe a cup of coffee. They talk for a while and Phoebe reveals that one of her donations for playing "Smelly cat" was a condom. A moment later a guy comes running to get back the condom, played by Giovanni Ribisi. He's not meant to be her brother, as her brother says when she meets him that he's never been to the city before - just a random incidence of an actor playing different roles across series. (00:18:06)
The One After the Superbowl, part 2 - S2-E13
Trivia: In The One With The Superbowl Part 2 the gang are down at the movie set of Marcel's film. Joey asks Phoebe to walk with him so he can show off his acting skills to the director. If you look closely you can see that the 'director' and the people surrounding him are the actual producers of Friends - Kevin S. Bright, Marta Kauffman and David Crane.
The One With The Lesbian Wedding - S2-E11
Trivia: Rachel says about her mother who thinks about a divorce and wants to be like her daughter : "Well, couldn't she have just copied my haircut?" A little reference to the fact that the Rachel haircut was one of the most copied one at the time. (00:10:15)
The One With Phoebe's Husband - S2-E4
Trivia: In this episode Joey's porn movie was going to be titled *How To Suck Seed In Business*. Cue network interference, leading to various other suggestions. Ultimately, it went untitled.
The One After the Superbowl, part 2 - S2-E13
Trivia: A big plot line in this episode is Ross going to visit Marcel. Take a look at the restaurant names on the menu where they eat dinner: the restaurant is called "Marcel's."
The One After the Superbowl, part 2 - S2-E13
Trivia: The young female crew member who Joey hopes can get him cast in Jean Claude Van Damme's movie is played by Lisa Roberts, sister to Julia Roberts, who is a guest star on this episode.
Answer: Usually by the seventh night of Hanukkah you don't know what to get the other person, and you will probably resort to getting the other person something insignificant. Chandler is basically saying that the pen is a stupid gift.