First appearance of Joey and Chandler's apartment, which was not shown in the pilot episode, The One Where Monica Gets a Roommate (1994) or episode 2.
A Toronto Blue Jays baseball hat is visible in Chandler's office. Matthew Perry holds both Canadian and American citizenship and was raised in Canada's capital city of Ottawa. He is also a Toronto Blue Jays fan.
Phoebe recites a nursery rhyme called The man in a shoe: "there was a crooked man who had a crooked smile, who loved in a shoe for a while" However, what she recites is a mixture of two nursery rhymes: the crooked man and The old lady who lived in a shoe. That's why her friends look at her strangely when she finishes the rhyme.
After Rachel serves the drinks in Central Perk, the correct recipients are as follows: Monica: decaf cappuccino, Joey: latte; Chandler: coffee, black; Ross: iced tea.