There are books you can buy as well to help you with some individual words. And, web sites. Then, yes, hang around Jamaicans, watch movies, videos, listen to music. You'll pick it up eventually. You wont' even realize you know till you are sitting there shaking your head during conversations.

__________________
Life's just a crazy ride on a run away train
You can't go back for what you've missed
So make it count, hold on tight find a way to make it right
You only get one trip
So make it good, make it last 'cause it all flies by so fast
You only get one trip