Things I like to do in Negril, or things I want to do, or things I did once and am glad I did:

live music and dancehall djs: Boat Bar, Woodstock, Drifter's, Alfred's, Roots Bamboo, Bourbon Beach, the Jungle, SeaStar Inn, etc

half day trips: Half Moon Beach, Blue Hole

day trips: Mayfield Falls, YS Falls, Floyd's Pelican Bar

Eats and Drinks: too many to mention! Just wander until you find a spot to settle in for a little while, or a grab and go brew

try it once: Rick's Cafe- it's an overpriced tourist trap, but worth one stop. If it's not your scene, just wander up the road a bit and find a quieter place like LTU pub. Also, if you like the scene, Margaritaville draws a good crowd- find out when they are hosting parties, I think I read it's Fridays

snorkel the cliffs, take a boat ride, walk the beach, get some touristy souvenirs, volunteer at the St Anthony's kitchen, play pool, play dominoes... relax!

the One Love Bus is fantastic!

Be sure to get out and about. It's smart to take a taxi at night. Exchange cash. Have a blast!