Reb eliezer,
There’s a famous joke
A bunch of guys are in jail and one shouts out 46
Everyone starts laughing
Someone else shouts out 17
More raucous laughter
A new guy in jail asks his friend “what are they doing” and is told they’ve been in jail for so long they know each other’s jokes and put it in order of number
Upon hearing this he gets up and shouts “33”
There’s dead silence
The newbie asks his friend why didn’t anyone laugh
The friend shoots back
“You have to know how to tell a joke”
The same applies here