By listening to the lyrics and trying to put them into context.
Dirty Conciounse
my mom
1999
it refers to Michael Jackson's legal troubles
the song is made by lil Wayne and can be found in the album reburth by lil Wayne
not afraid
his worst song is Not Afraid,however,its still very popular
Difficult
infinit
It is all aBout live
it was it was the real slim shady
Dirty Conciounse
It depends what song your talking about but they are about his life.
infinit
my mom
1999
mockingbird