Congenial
Part of speech: adjective
Definition: having the same or very similar nature, personality, tastes, habits or interests friendly or sociable suitable to one's needs
Example sentence: I found a certain kind of music congenial to me; it never occurred to me to write music that was academically acceptable.
Sociable
Part of speech: adjective
Definition: Tending to socialize or be social; friendly; inviting; congenial.
Example sentence: My peers, lately, have found companionship through means of intoxication - it makes them sociable. I, however, cannot force myself to use drugs to cheat on my loneliness - it is all that I have - and when the drugs and alcohol dissipate, will be all that my peers have as well.