*in school last week* me: how many people are coming for international

*in school last week*
me: how many people are coming for international day?
friend 1: you mean from our country group?
me: yeah who from our group is coming?
friend 2: derf
friend 1: what?
me: i see what you did there
friend 2: you do?
friend 1: i dont get it
friend 2: its the # from icarly
me: between 5 and 6
friend 1: oh my gosh how did i not remember this?!?!