How to Tell a Joke

Effective Joke Telling.  Miciah to Elijah.
M:  What's your name?
E:  Elijah.
M:  How do you spell it?
E:  E-L-I-J-A-H.
M:  No!  I-T!

Ineffective Joke Telling, part 1.  Elijah to Teancom.
E:  What's your name?
T:  Teancom.
E:  How do you spell it?
T:  I DON'T KNOW!

Ineffective Joke Telling, part 2.  Elijah to Rob.
E:  How do you spell it?
R:  I-T.
E:  Uhhh...