What the difference?

Hello everybody!!! Explain me! I cannot get it! What the difference between the : He eager to know it
He is agog to know it
He keens to know it
Thank you
Thinker

Hi Thinker,

Agog simply means very keen.

Alan

Thank you Alan. What is stronger: I eager to know or I am agog to know.
Thank you in advance.
Thinker

HI,

AGOG

ALAN

Thank you very much
Thinker